diff options
| author |   Eli Cohen <eli@mellanox.com> | 2020-07-14 21:28:32 -0700 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2020-07-15 22:21:29 -0700 |
| commit | 1dcb6c36a5ebac46099b6363ccf8f4e7563d51e2 (patch) | |
| tree | 713adceccd0a841095337eb6a1de6abea1f2c3a4 /drivers/net/ethernet/mellanox/mlx5/core/alloc.c | |
| parent | net/mlx5: Enable QP number request when creating IPoIB underlay QP (diff) | |
| download | linux-dev-1dcb6c36a5ebac46099b6363ccf8f4e7563d51e2.tar.xz linux-dev-1dcb6c36a5ebac46099b6363ccf8f4e7563d51e2.zip | |
net/mlx5: Support setting access rights of dma addresses
mlx5_fill_page_frag_array() is used to populate dma addresses to
resources that require it, such as QPs, RQs etc. When the resource is
used, PA list permissions are ignored. For resources that use MTT list,
the user is required to provide the access rights. Subsequent patches
use resources that require MTT lists, so modify API and implementation
to support that.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/alloc.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/alloc.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/alloc.c b/drivers/net/ethernet/mellanox/mlx5/core/alloc.c index 42198e64a7f4..8db4b5f0f963 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/alloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/alloc.c @@ -299,11 +299,18 @@ void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas) } EXPORT_SYMBOL_GPL(mlx5_fill_page_array); -void mlx5_fill_page_frag_array(struct mlx5_frag_buf *buf, __be64 *pas) +void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm) { int i; + WARN_ON(perm & 0xfc); for (i = 0; i < buf->npages; i++) - pas[i] = cpu_to_be64(buf->frags[i].map); + pas[i] = cpu_to_be64(buf->frags[i].map | perm); +} +EXPORT_SYMBOL_GPL(mlx5_fill_page_frag_array_perm); + +void mlx5_fill_page_frag_array(struct mlx5_frag_buf *buf, __be64 *pas) +{ + mlx5_fill_page_frag_array_perm(buf, pas, 0); } EXPORT_SYMBOL_GPL(mlx5_fill_page_frag_array); |