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| author | Eli Cohen <eli@mellanox.com> | 2017-01-03 23:55:24 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-01-09 20:24:55 +0200 |
| commit | 0118717583cda6f4f36092853ad0345e8150b286 (patch) | |
| tree | 2abb26bf5a267973ebe6b2d48af0faa5ce340cd7 /include/linux/mlx5/driver.h | |
| parent | a6d51b68611e98f05042ada662aed5dbe3279c1e (diff) | |
| download | lwn-0118717583cda6f4f36092853ad0345e8150b286.tar.gz lwn-0118717583cda6f4f36092853ad0345e8150b286.zip | |
net/mlx5: Add interface to get reference to a UAR
A reference to a UAR is required to generate CQ or EQ doorbells. Since
CQ or EQ doorbells can all be generated using the same UAR area without
any effect on performance, we are just getting a reference to any
available UAR, If one is not available we allocate it but we don't waste
the blue flame registers it can provide and we will use them for
subsequent allocations.
We get a reference to such UAR and put in mlx5_priv so any kernel
consumer can make use of it.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/linux/mlx5/driver.h')
| -rw-r--r-- | include/linux/mlx5/driver.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 969aa1fe17e2..9a3a0954855b 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -679,6 +679,7 @@ struct mlx5_priv { struct srcu_struct pfault_srcu; #endif struct mlx5_bfreg_data bfregs; + struct mlx5_uars_page *uar; }; enum mlx5_device_state { @@ -1007,7 +1008,7 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec); void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type); int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, int nent, u64 mask, const char *name, - struct mlx5_uar *uar, enum mlx5_eq_type type); + enum mlx5_eq_type type); int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); int mlx5_start_eqs(struct mlx5_core_dev *dev); int mlx5_stop_eqs(struct mlx5_core_dev *dev); @@ -1118,6 +1119,8 @@ int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev); int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev); bool mlx5_lag_is_active(struct mlx5_core_dev *dev); struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev); +struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev); +void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up); struct mlx5_profile { u64 mask; |