net/mlx4_en: Fix traffic loss under promiscuous mode
When port is stopped and flow steering mode is not device managed: promisc QP rule wasn't removed from MCG table. Added code to remove it in all flow steering modes. In addition, promsic rule removal should be in stop port and not in start port - moved it accordingly. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2d51837fa1
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@ -1167,15 +1167,6 @@ int mlx4_en_start_port(struct net_device *dev)
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/* Must redo promiscuous mode setup. */
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priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC);
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if (mdev->dev->caps.steering_mode ==
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MLX4_STEERING_MODE_DEVICE_MANAGED) {
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mlx4_flow_steer_promisc_remove(mdev->dev,
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priv->port,
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MLX4_FS_PROMISC_UPLINK);
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mlx4_flow_steer_promisc_remove(mdev->dev,
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priv->port,
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MLX4_FS_PROMISC_ALL_MULTI);
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}
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/* Schedule multicast task to populate multicast list */
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queue_work(mdev->workqueue, &priv->mcast_task);
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@ -1227,6 +1218,32 @@ void mlx4_en_stop_port(struct net_device *dev)
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/* Set port as not active */
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priv->port_up = false;
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/* Promsicuous mode */
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if (mdev->dev->caps.steering_mode ==
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MLX4_STEERING_MODE_DEVICE_MANAGED) {
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priv->flags &= ~(MLX4_EN_FLAG_PROMISC |
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MLX4_EN_FLAG_MC_PROMISC);
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mlx4_flow_steer_promisc_remove(mdev->dev,
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priv->port,
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MLX4_FS_PROMISC_UPLINK);
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mlx4_flow_steer_promisc_remove(mdev->dev,
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priv->port,
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MLX4_FS_PROMISC_ALL_MULTI);
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} else if (priv->flags & MLX4_EN_FLAG_PROMISC) {
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priv->flags &= ~MLX4_EN_FLAG_PROMISC;
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/* Disable promiscouos mode */
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mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn,
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priv->port);
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/* Disable Multicast promisc */
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if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) {
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mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn,
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priv->port);
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priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC;
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}
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}
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/* Detach All multicasts */
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memset(&mc_list[10], 0xff, ETH_ALEN);
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mc_list[5] = priv->port; /* needed for B0 steering support */
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