diff options
| author | Eli Cohen <eli@mellanox.com> | 2017-01-03 23:55:27 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-01-09 20:25:09 +0200 |
| commit | 30aa60b3bd12bd79b5324b7b595bd3446ab24b52 (patch) | |
| tree | cb26fe9fe51a039bc50ccc571ade6ecd3a5a0582 /drivers/net/ethernet/mellanox/mlx5/core/uar.c | |
| parent | b037c29a8056b8e896c4e084ba7cc30d6a1f165f (diff) | |
| download | linux-30aa60b3bd12bd79b5324b7b595bd3446ab24b52.tar.bz2 | |
IB/mlx5: Support 4k UAR for libmlx5
Add fields to structs to convey to kernel an indication whether the
library supports multi UARs per page and return to the library the size
of a UAR based on the queried value.
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 'drivers/net/ethernet/mellanox/mlx5/core/uar.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/uar.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/uar.c b/drivers/net/ethernet/mellanox/mlx5/core/uar.c index 07b273cccc26..2e6b0f290ddc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/uar.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/uar.c @@ -37,11 +37,6 @@ #include <linux/mlx5/cmd.h> #include "mlx5_core.h" -enum { - NUM_DRIVER_UARS = 4, - NUM_LOW_LAT_BFREGS = 4, -}; - int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn) { u32 out[MLX5_ST_SZ_DW(alloc_uar_out)] = {0}; @@ -67,57 +62,6 @@ int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn) } EXPORT_SYMBOL(mlx5_cmd_free_uar); -int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar, - bool map_wc) -{ - phys_addr_t pfn; - phys_addr_t uar_bar_start; - int err; - - err = mlx5_cmd_alloc_uar(mdev, &uar->index); - if (err) { - mlx5_core_warn(mdev, "mlx5_cmd_alloc_uar() failed, %d\n", err); - return err; - } - - uar_bar_start = pci_resource_start(mdev->pdev, 0); - pfn = (uar_bar_start >> PAGE_SHIFT) + uar->index; - - if (map_wc) { - uar->bf_map = ioremap_wc(pfn << PAGE_SHIFT, PAGE_SIZE); - if (!uar->bf_map) { - mlx5_core_warn(mdev, "ioremap_wc() failed\n"); - uar->map = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); - if (!uar->map) - goto err_free_uar; - } - } else { - uar->map = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); - if (!uar->map) - goto err_free_uar; - } - - return 0; - -err_free_uar: - mlx5_core_warn(mdev, "ioremap() failed\n"); - err = -ENOMEM; - mlx5_cmd_free_uar(mdev, uar->index); - - return err; -} -EXPORT_SYMBOL(mlx5_alloc_map_uar); - -void mlx5_unmap_free_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar) -{ - if (uar->map) - iounmap(uar->map); - else - iounmap(uar->bf_map); - mlx5_cmd_free_uar(mdev, uar->index); -} -EXPORT_SYMBOL(mlx5_unmap_free_uar); - static int uars_per_sys_page(struct mlx5_core_dev *mdev) { if (MLX5_CAP_GEN(mdev, uar_4k)) |