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Commit bcf87f1d authored by Mark Bloch's avatar Mark Bloch Committed by Saeed Mahameed
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IB/mlx5: Listen to netdev register/unresiter events in switchdev mode 



Currently we listen to netdev register/unregister event based on PCI
device. When in switchdev mode PF and representors share the same PCI
device, so in order to pair ib device and netdev in switchdev mode
compare the netdev that triggered the event to that of the representor.

Expose a function that lets you receive the netdev associated what
a given representor.

Signed-off-by: default avatarMark Bloch <markb@mellanox.com>
Reviewed-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 018a94ee

drivers/infiniband/hw/mlx5/ib_rep.h

+8 −0
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, 
					   int vport_index);

void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev);

void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev);

struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,

					  int vport_index);

#else /* CONFIG_MLX5_ESWITCH */

static inline u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)

{
@@ -39,6 +41,12 @@ struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, 


static inline void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev) {}

static inline void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev) {}

static inline

struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,

					  int vport_index)

{

	return NULL;

}

#endif



static inline

drivers/infiniband/hw/mlx5/main.c

+12 −3
Original line number Diff line number Diff line
@@ -155,10 +155,19 @@ static int mlx5_netdev_event(struct notifier_block *this, 
	case NETDEV_REGISTER:

	case NETDEV_UNREGISTER:

		write_lock(&roce->netdev_lock);

		if (ibdev->rep) {

			struct mlx5_eswitch *esw = ibdev->mdev->priv.eswitch;

			struct net_device *rep_ndev;



		if (ndev->dev.parent == &mdev->pdev->dev)

			rep_ndev = mlx5_ib_get_rep_netdev(esw,

							  ibdev->rep->vport);

			if (rep_ndev == ndev)

				roce->netdev = (event == NETDEV_UNREGISTER) ?

					NULL : ndev;

		} else if (ndev->dev.parent == &ibdev->mdev->pdev->dev) {

			roce->netdev = (event == NETDEV_UNREGISTER) ?

				NULL : ndev;

		}

		write_unlock(&roce->netdev_lock);

		break;