diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-15 13:43:09 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-16 16:53:30 -0400 |
| commit | c08fbdc57741026a440d01593e09e11b60b3e210 (patch) | |
| tree | ccf7b749a9874e431e10c3429f60a2003b0f1a9e /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | a59b7b05efc827929c2aa46fc2fe561982bd19fc (diff) | |
RDMA/mlx5: mlx5_umem_find_best_quantized_pgoff() for CQ
This fixes a bug where the page_offset was not being considered when
building a CQ. The HW specification says it 'must be zero', so use
a variant of mlx5_umem_find_best_quantized_pgoff() with a 0 pgoff_bitmask
to force this result.
Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20201115114311.136250-6-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.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, 10 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 555bc94d4786..3098a7e0d186 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -100,6 +100,16 @@ unsigned long __mlx5_umem_find_best_quantized_pgoff( GENMASK(31, order_base_2(scale)), scale, \ page_offset_quantized) +#define mlx5_umem_find_best_cq_quantized_pgoff(umem, typ, log_pgsz_fld, \ + pgsz_shift, page_offset_fld, \ + scale, page_offset_quantized) \ + __mlx5_umem_find_best_quantized_pgoff( \ + umem, \ + __mlx5_log_page_size_to_bitmap( \ + __mlx5_bit_sz(typ, log_pgsz_fld), pgsz_shift), \ + __mlx5_bit_sz(typ, page_offset_fld), 0, scale, \ + page_offset_quantized) + enum { MLX5_IB_MMAP_OFFSET_START = 9, MLX5_IB_MMAP_OFFSET_END = 255, |