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| author |   Matan Barak <matanb@mellanox.com> | 2015-12-15 20:30:13 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-12-23 23:25:59 -0500 |
| commit | d69e3bcf79764ed833e0cc6e0645dc87589cec22 (patch) | |
| tree | 5f443d6aafe32729363f65f2035bea6d892b0763 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | IB/mlx5: Add hca_core_clock_offset to udata in init_ucontext (diff) | |
| download | linux-dev-d69e3bcf79764ed833e0cc6e0645dc87589cec22.tar.xz linux-dev-d69e3bcf79764ed833e0cc6e0645dc87589cec22.zip | |
IB/mlx5: Mmap the HCA's core clock register to user-space
In order to read the HCA's current cycles register, we need
to map it to user-space. Add support to map this register
via mmap command.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Moshe Lazer <moshel@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index b2a66432b865..1303487ffe6b 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -65,7 +65,9 @@ enum { enum mlx5_ib_mmap_cmd { MLX5_IB_MMAP_REGULAR_PAGE = 0, - MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES = 1, /* always last */ + MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES = 1, + /* 5 is chosen in order to be compatible with old versions of libmlx5 */ + MLX5_IB_MMAP_CORE_CLOCK = 5, }; enum { |