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Commit 62a9b90a authored by Mohamad Haj Yahia's avatar Mohamad Haj Yahia Committed by David S. Miller
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net/mlx5: Implement eswitch attach/detach flows 



Needed for lightweight and modular internal/pci error handling.
Implement eswitch attach function which allocates/starts hw related
resources.
Implement eswitch detach function which releases/stops hw related
resources.
Init/cleanup function only handle eswitch software context allocation
and destruction.

Signed-off-by: default avatarMohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent acab721b

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

+21 −3
Original line number Diff line number Diff line
@@ -1559,6 +1559,25 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) 
	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);

}



void mlx5_eswitch_attach(struct mlx5_eswitch *esw)

{

	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||

	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)

		return;



	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);

	/* VF Vports will be enabled when SRIOV is enabled */

}



void mlx5_eswitch_detach(struct mlx5_eswitch *esw)

{

	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||

	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)

		return;



	esw_disable_vport(esw, 0);

}



int mlx5_eswitch_init(struct mlx5_core_dev *dev)

{

	int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
@@ -1635,9 +1654,8 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev) 
	esw->enabled_vports = 0;

	esw->mode = SRIOV_NONE;



	mlx5_eswitch_attach(esw);

	dev->priv.eswitch = esw;

	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);

	/* VF Vports will be enabled when SRIOV is enabled */

	return 0;

abort:

	if (esw->work_queue)
@@ -1656,8 +1674,8 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) 
		return;



	esw_info(esw->dev, "cleanup\n");

	esw_disable_vport(esw, 0);



	mlx5_eswitch_detach(esw);

	esw->dev->priv.eswitch = NULL;

	destroy_workqueue(esw->work_queue);

	kfree(esw->l2_table.bitmap);

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

+2 −0
Original line number Diff line number Diff line
@@ -204,6 +204,8 @@ struct mlx5_eswitch { 
/* E-Switch API */

int mlx5_eswitch_init(struct mlx5_core_dev *dev);

void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);

void mlx5_eswitch_attach(struct mlx5_eswitch *esw);

void mlx5_eswitch_detach(struct mlx5_eswitch *esw);

void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);

int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode);

void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);