diff options
author | Saeed Mahameed <saeedm@mellanox.com> | 2015-05-28 22:28:40 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2015-05-30 18:23:11 -0700 |
commit | e281682bf29438848daac11627216bceb1507b71 (patch) | |
tree | 98ed232873b05ca20f6d251514d5254c0e04a231 /drivers/net/ethernet/mellanox/mlx5/core/uar.c | |
parent | db058a186f98b057c19c42f7b10d9a96fd3b5d59 (diff) | |
download | linux-e281682bf29438848daac11627216bceb1507b71.tar.bz2 |
net/mlx5_core: HW data structs/types definitions cleanup
mlx5_ifc.h was heavily modified here since it is now generated by a
script from the device specification (PRM rev 0.25). This specification
is backward compatible to existing hardware.
Some structures/fields were added here in order to enable the Ethernet
functionality of the driver.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/uar.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/uar.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/uar.c b/drivers/net/ethernet/mellanox/mlx5/core/uar.c index 5a89bb1d678a..ba58f6d7c761 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/uar.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/uar.c @@ -223,3 +223,40 @@ int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari) return 0; } + +int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar) +{ + 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; + uar->map = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); + if (!uar->map) { + mlx5_core_warn(mdev, "ioremap() failed, %d\n", err); + err = -ENOMEM; + goto err_free_uar; + } + + return 0; + +err_free_uar: + 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) +{ + iounmap(uar->map); + mlx5_cmd_free_uar(mdev, uar->index); +} +EXPORT_SYMBOL(mlx5_unmap_free_uar); |