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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2020-10-26 15:19:33 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-02 14:52:26 -0400 |
| commit | f0093fb1a7cbff4bbfa47c1499a9e76f75359dbe (patch) | |
| tree | 547674b190fd0d9aead0112a7002fde1d397dbf6 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | RDMA/mlx5: Remove mlx5_ib_mr->npages (diff) | |
| download | linux-dev-f0093fb1a7cbff4bbfa47c1499a9e76f75359dbe.tar.xz linux-dev-f0093fb1a7cbff4bbfa47c1499a9e76f75359dbe.zip | |
RDMA/mlx5: Move mlx5_ib_cont_pages() to the creation of the mlx5_ib_mr
For the user MR path, instead of calling this after getting the umem, call
it as part of creating the struct mlx5_ib_mr and distill its output to a
single page_shift stored inside the mr.
This avoids passing around the tuple of its output. Based on the umem and
page_shift, the output arguments can be computed using:
count == ib_umem_num_pages(mr->umem)
shift == mr->page_shift
ncont == ib_umem_num_dma_blocks(mr->umem, 1 << mr->page_shift)
order == order_base_2(ncont)
And since mr->page_shift == umem_odp->page_shift then ncont ==
ib_umem_num_dma_blocks() == ib_umem_odp_num_pages() for ODP umems.
Link: https://lore.kernel.org/r/20201026131936.1335664-5-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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 0eaf992a4e15..9c1d206cb900 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -597,6 +597,7 @@ struct mlx5_ib_mr { int max_descs; int desc_size; int access_mode; + unsigned int page_shift; struct mlx5_core_mkey mmkey; struct ib_umem *umem; struct mlx5_shared_mr_info *smr_info; |