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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: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mohamad Haj Yahia 2016-09-09 17:35:22 +03:00 committed by David S. Miller
parent acab721b5d
commit 62a9b90ad8
2 changed files with 23 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -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);

2
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -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);