net/mlx5e: DCBNL, Add debug messages log

Add debug print when changing the configuration of QoS through dcbnl.
Use ethtool -s <devname> msglvl hw on/off to toggle debug messages.

Signed-off-by: Inbar Karmy <inbark@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
index b402d69a701b1c2ba3e728f0d228717396ca1e81..c6d90b6dd80efa9a1ee82958adf5ef4dd3b4522d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -241,7 +241,7 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
        u8 tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
        u8 tc_group[IEEE_8021QAZ_MAX_TCS];
        int max_tc = mlx5_max_tc(mdev);
-       int err;
+       int err, i;
 
        mlx5e_build_tc_group(ets, tc_group, max_tc);
        mlx5e_build_tc_tx_bw(ets, tc_tx_bw, tc_group, max_tc);
@@ -260,6 +260,14 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
                return err;
 
        memcpy(priv->dcbx.tc_tsa, ets->tc_tsa, sizeof(ets->tc_tsa));
+
+       for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
+               mlx5e_dbg(HW, priv, "%s: prio_%d <=> tc_%d\n",
+                         __func__, i, ets->prio_tc[i]);
+               mlx5e_dbg(HW, priv, "%s: tc_%d <=> tx_bw_%d%%, group_%d\n",
+                         __func__, i, tc_tx_bw[i], tc_group[i]);
+       }
+
        return err;
 }
 
@@ -345,6 +353,11 @@ static int mlx5e_dcbnl_ieee_setpfc(struct net_device *dev,
        ret = mlx5_set_port_pfc(mdev, pfc->pfc_en, pfc->pfc_en);
        mlx5_toggle_port_link(mdev);
 
+       if (!ret) {
+               mlx5e_dbg(HW, priv,
+                         "%s: PFC per priority bit mask: 0x%x\n",
+                         __func__, pfc->pfc_en);
+       }
        return ret;
 }
 
@@ -560,6 +573,11 @@ static int mlx5e_dcbnl_ieee_setmaxrate(struct net_device *netdev,
                }
        }
 
+       for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
+               mlx5e_dbg(HW, priv, "%s: tc_%d <=> max_bw %d Gbps\n",
+                         __func__, i, max_bw_value[i]);
+       }
+
        return mlx5_modify_port_ets_rate_limit(mdev, max_bw_value, max_bw_unit);
 }
 
@@ -585,6 +603,10 @@ static u8 mlx5e_dcbnl_setall(struct net_device *netdev)
                ets.tc_rx_bw[i] = cee_cfg->pg_bw_pct[i];
                ets.tc_tsa[i]   = IEEE_8021QAZ_TSA_ETS;
                ets.prio_tc[i]  = cee_cfg->prio_to_pg_map[i];
+               mlx5e_dbg(HW, priv,
+                         "%s: Priority group %d: tx_bw %d, rx_bw %d, prio_tc %d\n",
+                         __func__, i, ets.tc_tx_bw[i], ets.tc_rx_bw[i],
+                         ets.prio_tc[i]);
        }
 
        err = mlx5e_dbcnl_validate_ets(netdev, &ets);