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| author | Ilan Tayari <ilant@mellanox.com> | 2017-03-26 17:23:42 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-06-27 16:36:47 +0300 |
| commit | a6f7d2aff623bb7572d4bca1caf5820e0cd5a586 (patch) | |
| tree | e619f280d8b163905409ed1a713dd9865b52bbc8 /drivers/net/ethernet | |
| parent | 52ec462eca9b87b8036209483efe1c6cf9c49d9a (diff) | |
| download | linux-a6f7d2aff623bb7572d4bca1caf5820e0cd5a586.tar.gz linux-a6f7d2aff623bb7572d4bca1caf5820e0cd5a586.tar.bz2 linux-a6f7d2aff623bb7572d4bca1caf5820e0cd5a586.zip | |
net/mlx5: Add support for multiple RoCE enable
Previously, only mlx5_ib enabled RoCE on the port, but FPGA needs it as
well.
Add support for counting number of enables, so that FPGA and IB can work
in parallel and independently.
Program the HW to enable RoCE on the first enable call, and program to
disable RoCE on the last disable call.
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/vport.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c index 06019d00ab7b..5abfec1c3399 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c @@ -926,12 +926,16 @@ static int mlx5_nic_vport_update_roce_state(struct mlx5_core_dev *mdev, int mlx5_nic_vport_enable_roce(struct mlx5_core_dev *mdev) { + if (atomic_inc_return(&mdev->roce.roce_en) != 1) + return 0; return mlx5_nic_vport_update_roce_state(mdev, MLX5_VPORT_ROCE_ENABLED); } EXPORT_SYMBOL_GPL(mlx5_nic_vport_enable_roce); int mlx5_nic_vport_disable_roce(struct mlx5_core_dev *mdev) { + if (atomic_dec_return(&mdev->roce.roce_en) != 0) + return 0; return mlx5_nic_vport_update_roce_state(mdev, MLX5_VPORT_ROCE_DISABLED); } EXPORT_SYMBOL_GPL(mlx5_nic_vport_disable_roce); |