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RDMA/mlx5: Remove order from mlx5_ib_cont_pages() 

Only alloc_mr_from_cache() needs order and can trivially compute it, so
lift it to the one call site and remove the NULL arguments.

Link: https://lore.kernel.org/r/20201026131936.1335664-6-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Jason Gunthorpe 2020-10-26 15:19:34 +02:00
parent f0093fb1a7
commit 95741ee3f0
7 changed files with 12 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/infiniband/hw/mlx5/cq.c
View File

@ -747,7 +747,7 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,
goto err_umem;
mlx5_ib_cont_pages(cq->buf.umem, ucmd.buf_addr, 0, &npages, &page_shift,
&ncont, NULL);
&ncont);
mlx5_ib_dbg(dev, "addr 0x%llx, size %u, npages %d, page_shift %d, ncont %d\n",
ucmd.buf_addr, entries * ucmd.cqe_size, npages, page_shift, ncont);
@ -1155,8 +1155,7 @@ static int resize_user(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
return err;
}
mlx5_ib_cont_pages(umem, ucmd.buf_addr, 0, &npages, page_shift,
npas, NULL);
mlx5_ib_cont_pages(umem, ucmd.buf_addr, 0, &npages, page_shift, npas);
cq->resize_umem = umem;
*cqe_size = ucmd.cqe_size;

2
drivers/infiniband/hw/mlx5/devx.c
View File

@ -2083,7 +2083,7 @@ static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
mlx5_ib_cont_pages(obj->umem, obj->umem->address,
MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
&obj->page_shift, &obj->ncont, NULL);
&obj->page_shift, &obj->ncont);
if (!npages) {
ib_umem_release(obj->umem);

13
drivers/infiniband/hw/mlx5/mem.c
View File

@ -42,12 +42,11 @@
* @count: number of PAGE_SIZE pages covered by umem
* @shift: page shift for the compound pages found in the region
* @ncont: number of compund pages
* @order: log2 of the number of compound pages
*/
void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
unsigned long max_page_shift,
int *count, int *shift,
int *ncont, int *order)
int *ncont)
{
unsigned long tmp;
unsigned long m;
@ -63,8 +62,6 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
*shift = odp->page_shift;
*ncont = ib_umem_odp_num_pages(odp);
*count = *ncont << (*shift - PAGE_SHIFT);
if (order)
*order = ilog2(roundup_pow_of_two(*count));
return;
}
@ -95,17 +92,9 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
if (i) {
m = min_t(unsigned long, ilog2(roundup_pow_of_two(i)), m);
if (order)
*order = ilog2(roundup_pow_of_two(i) >> m);
*ncont = DIV_ROUND_UP(i, (1 << m));
} else {
m = 0;
if (order)
*order = 0;
*ncont = 0;
}
*shift = PAGE_SHIFT + m;

2
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -1232,7 +1232,7 @@ int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
unsigned long max_page_shift,
int *count, int *shift,
int *ncont, int *order);
int *ncont);
void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
int page_shift, size_t offset, size_t num_pages,
__be64 *pas, int access_flags);

8
drivers/infiniband/hw/mlx5/mr.c
View File

@ -960,11 +960,11 @@ static struct mlx5_ib_mr *alloc_mr_from_cache(struct ib_pd *pd,
int npages;
int page_shift;
int ncont;
int order;
mlx5_ib_cont_pages(umem, iova, MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
&page_shift, &ncont, &order);
ent = mr_cache_ent_from_order(dev, order);
&page_shift, &ncont);
ent = mr_cache_ent_from_order(dev, order_base_2(ib_umem_num_dma_blocks(
umem, 1UL << page_shift)));
if (!ent)
return ERR_PTR(-E2BIG);
@ -1165,7 +1165,7 @@ static struct mlx5_ib_mr *reg_create(struct ib_mr *ibmr, struct ib_pd *pd,
return ERR_PTR(-ENOMEM);
mlx5_ib_cont_pages(umem, iova, MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
&page_shift, &ncont, NULL);
&page_shift, &ncont);
mr->page_shift = page_shift;
mr->ibmr.pd = pd;

4
drivers/infiniband/hw/mlx5/qp.c
View File

@ -791,7 +791,7 @@ static int mlx5_ib_umem_get(struct mlx5_ib_dev *dev, struct ib_udata *udata,
return PTR_ERR(*umem);
}
mlx5_ib_cont_pages(*umem, addr, 0, npages, page_shift, ncont, NULL);
mlx5_ib_cont_pages(*umem, addr, 0, npages, page_shift, ncont);
err = mlx5_ib_get_buf_offset(addr, *page_shift, offset);
if (err) {
@ -850,7 +850,7 @@ static int create_user_rq(struct mlx5_ib_dev *dev, struct ib_pd *pd,
}
mlx5_ib_cont_pages(rwq->umem, ucmd->buf_addr, 0, &npages, &page_shift,
&ncont, NULL);
&ncont);
err = mlx5_ib_get_buf_offset(ucmd->buf_addr, page_shift,
&rwq->rq_page_offset);
if (err) {

2
drivers/infiniband/hw/mlx5/srq.c
View File

@ -88,7 +88,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
}
mlx5_ib_cont_pages(srq->umem, ucmd.buf_addr, 0, &npages,
&page_shift, &ncont, NULL);
&page_shift, &ncont);
err = mlx5_ib_get_buf_offset(ucmd.buf_addr, page_shift,
&offset);
if (err) {