diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2020-10-26 15:23:10 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-02 14:53:54 -0400 |
| commit | aab8d3966d2c2aa6c59fbacdb17d82156653754f (patch) | |
| tree | 40f7bab5207c0de9fe0ac913de9f32fbb33fff5d /drivers/infiniband/hw/mlx5/mem.c | |
| parent | f8fb3110635c91a375399450dc5a4a79a83b0414 (diff) | |
RDMA/mlx5: Change mlx5_ib_populate_pas() to use rdma_for_each_block()
This routine converts the umem SGL into a list of fixed pages for DMA,
which is exactly what rdma_umem_for_each_dma_block() is for, use the
common code directly.
Link: https://lore.kernel.org/r/20201026132314.1336717-2-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/mem.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mem.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c index 7ae96b37bd6e..779c4a040d8b 100644 --- a/drivers/infiniband/hw/mlx5/mem.c +++ b/drivers/infiniband/hw/mlx5/mem.c @@ -155,13 +155,22 @@ void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, } } -void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, - int page_shift, __be64 *pas, int access_flags) +/* + * Fill in a physical address list. ib_umem_num_dma_blocks() entries will be + * filled in the pas array. + */ +void mlx5_ib_populate_pas(struct ib_umem *umem, size_t page_size, __be64 *pas, + u64 access_flags) { - return __mlx5_ib_populate_pas(dev, umem, page_shift, 0, - ib_umem_num_dma_blocks(umem, PAGE_SIZE), - pas, access_flags); + struct ib_block_iter biter; + + rdma_umem_for_each_dma_block (umem, &biter, page_size) { + *pas = cpu_to_be64(rdma_block_iter_dma_address(&biter) | + access_flags); + pas++; + } } + int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset) { u64 page_size; |