net/mlx5e: Allow only complete TXQs partition in MQPRIO channel mode

Do not allow configurations of MQPRIO channel mode that do not
fully define and utilize the channels txqs.

Fixes: ec60c45 ("net/mlx5e: Support MQPRIO channel mode")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -2981,8 +2981,8 @@ static int mlx5e_mqprio_channel_validate(struct mlx5e_priv *priv,
 		agg_count += mqprio->qopt.count[i];
 	}
 
-	if (priv->channels.params.num_channels < agg_count) {
-		netdev_err(netdev, "Num of queues (%d) exceeds available (%d)\n",
+	if (priv->channels.params.num_channels != agg_count) {
+		netdev_err(netdev, "Num of queues (%d) does not match available (%d)\n",
 			   agg_count, priv->channels.params.num_channels);
 		return -EINVAL;
 	}