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path: root/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c72
1 files changed, 41 insertions, 31 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
index 1a0c3bf86ead..752a72499b4f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
@@ -156,57 +156,63 @@ static int mlx4_en_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
static u8 mlx4_en_dcbnl_set_all(struct net_device *netdev)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
+ struct mlx4_en_port_profile *prof = priv->prof;
struct mlx4_en_dev *mdev = priv->mdev;
+ u8 tx_pause, tx_ppp, rx_pause, rx_ppp;
if (!(priv->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
if (priv->cee_config.pfc_state) {
int tc;
+ rx_ppp = prof->rx_ppp;
+ tx_ppp = prof->tx_ppp;
- priv->prof->rx_pause = 0;
- priv->prof->tx_pause = 0;
for (tc = 0; tc < CEE_DCBX_MAX_PRIO; tc++) {
u8 tc_mask = 1 << tc;
switch (priv->cee_config.dcb_pfc[tc]) {
case pfc_disabled:
- priv->prof->tx_ppp &= ~tc_mask;
- priv->prof->rx_ppp &= ~tc_mask;
+ tx_ppp &= ~tc_mask;
+ rx_ppp &= ~tc_mask;
break;
case pfc_enabled_full:
- priv->prof->tx_ppp |= tc_mask;
- priv->prof->rx_ppp |= tc_mask;
+ tx_ppp |= tc_mask;
+ rx_ppp |= tc_mask;
break;
case pfc_enabled_tx:
- priv->prof->tx_ppp |= tc_mask;
- priv->prof->rx_ppp &= ~tc_mask;
+ tx_ppp |= tc_mask;
+ rx_ppp &= ~tc_mask;
break;
case pfc_enabled_rx:
- priv->prof->tx_ppp &= ~tc_mask;
- priv->prof->rx_ppp |= tc_mask;
+ tx_ppp &= ~tc_mask;
+ rx_ppp |= tc_mask;
break;
default:
break;
}
}
- en_dbg(DRV, priv, "Set pfc on\n");
+ rx_pause = !!(rx_ppp || tx_ppp) ? 0 : prof->rx_pause;
+ tx_pause = !!(rx_ppp || tx_ppp) ? 0 : prof->tx_pause;
} else {
- priv->prof->rx_pause = 1;
- priv->prof->tx_pause = 1;
- en_dbg(DRV, priv, "Set pfc off\n");
+ rx_ppp = 0;
+ tx_ppp = 0;
+ rx_pause = prof->rx_pause;
+ tx_pause = prof->tx_pause;
}
if (mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
- priv->prof->tx_pause,
- priv->prof->tx_ppp,
- priv->prof->rx_pause,
- priv->prof->rx_ppp)) {
+ tx_pause, tx_ppp, rx_pause, rx_ppp)) {
en_err(priv, "Failed setting pause params\n");
return 1;
}
+ prof->tx_ppp = tx_ppp;
+ prof->rx_ppp = rx_ppp;
+ prof->tx_pause = tx_pause;
+ prof->rx_pause = rx_pause;
+
return 0;
}
@@ -408,6 +414,7 @@ static int mlx4_en_dcbnl_ieee_setpfc(struct net_device *dev,
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_port_profile *prof = priv->prof;
struct mlx4_en_dev *mdev = priv->mdev;
+ u32 tx_pause, tx_ppp, rx_pause, rx_ppp;
int err;
en_dbg(DRV, priv, "cap: 0x%x en: 0x%x mbc: 0x%x delay: %d\n",
@@ -416,23 +423,26 @@ static int mlx4_en_dcbnl_ieee_setpfc(struct net_device *dev,
pfc->mbc,
pfc->delay);
- prof->rx_pause = !pfc->pfc_en;
- prof->tx_pause = !pfc->pfc_en;
- prof->rx_ppp = pfc->pfc_en;
- prof->tx_ppp = pfc->pfc_en;
+ rx_pause = prof->rx_pause && !pfc->pfc_en;
+ tx_pause = prof->tx_pause && !pfc->pfc_en;
+ rx_ppp = pfc->pfc_en;
+ tx_ppp = pfc->pfc_en;
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
- prof->tx_pause,
- prof->tx_ppp,
- prof->rx_pause,
- prof->rx_ppp);
- if (err)
+ tx_pause, tx_ppp, rx_pause, rx_ppp);
+ if (err) {
en_err(priv, "Failed setting pause params\n");
- else
- mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
- prof->rx_ppp, prof->rx_pause,
- prof->tx_ppp, prof->tx_pause);
+ return err;
+ }
+
+ mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
+ rx_ppp, rx_pause, tx_ppp, tx_pause);
+
+ prof->tx_ppp = tx_ppp;
+ prof->rx_ppp = rx_ppp;
+ prof->rx_pause = rx_pause;
+ prof->tx_pause = tx_pause;
return err;
}