diff options
| author | Feras Daoud <ferasda@mellanox.com> | 2018-01-16 21:08:41 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-01-18 22:49:21 +0300 |
| commit | 5c99eaecb1fce76e86cf74020624e36fbb63c3bf (patch) | |
| tree | 41b190412ee9831aa582c8f8b19300971b68b50d /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | 24d33d2c8e92abffe1f0653d42fc65b8f164a6d9 (diff) | |
| download | linux-5c99eaecb1fce76e86cf74020624e36fbb63c3bf.tar.xz | |
IB/mlx5: Mmap the HCA's clock info to user-space
This patch maps the new page to user space applications to
allow converting a user space completion timestamp to system wall
time at the lowest possible latency cost.
By using a versioning scheme we allow compatibility between current
and future userspace libraries.
The change moves mlx5_ib_mmap_cmd enum from mlx5_ib.h to the
abi header file mlx5-abi.h.
Reviewed-by: Alex Vesker <valex@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Eitan Rabin <rabin@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 51228dfcfbe7..69a80f7512f0 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -70,16 +70,6 @@ enum { MLX5_IB_MMAP_CMD_MASK = 0xff, }; -enum mlx5_ib_mmap_cmd { - MLX5_IB_MMAP_REGULAR_PAGE = 0, - MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES = 1, - MLX5_IB_MMAP_WC_PAGE = 2, - MLX5_IB_MMAP_NC_PAGE = 3, - /* 5 is chosen in order to be compatible with old versions of libmlx5 */ - MLX5_IB_MMAP_CORE_CLOCK = 5, - MLX5_IB_MMAP_ALLOC_WC = 6, -}; - enum { MLX5_RES_SCAT_DATA32_CQE = 0x1, MLX5_RES_SCAT_DATA64_CQE = 0x2, |