diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/main.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 289445f6af21..12273851f2db 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1786,6 +1786,7 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx, max_cqe_version); u32 dump_fill_mkey; bool lib_uar_4k; + bool lib_uar_dyn; if (!dev->ib_active) return -EAGAIN; @@ -1844,8 +1845,14 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx, } lib_uar_4k = req.lib_caps & MLX5_LIB_CAP_4K_UAR; + lib_uar_dyn = req.lib_caps & MLX5_LIB_CAP_DYN_UAR; bfregi = &context->bfregi; + if (lib_uar_dyn) { + bfregi->lib_uar_dyn = lib_uar_dyn; + goto uar_done; + } + /* updates req->total_num_bfregs */ err = calc_total_bfregs(dev, lib_uar_4k, &req, bfregi); if (err) @@ -1872,6 +1879,7 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx, if (err) goto out_sys_pages; +uar_done: if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX) { err = mlx5_ib_devx_create(dev, true); if (err < 0) @@ -1893,7 +1901,7 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx, INIT_LIST_HEAD(&context->db_page_list); mutex_init(&context->db_page_mutex); - resp.tot_bfregs = req.total_num_bfregs; + resp.tot_bfregs = lib_uar_dyn ? 0 : req.total_num_bfregs; resp.num_ports = dev->num_ports; if (offsetofend(typeof(resp), cqe_version) <= udata->outlen) @@ -2141,6 +2149,9 @@ static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd, int max_valid_idx = dyn_uar ? bfregi->num_sys_pages : bfregi->num_static_sys_pages; + if (bfregi->lib_uar_dyn) + return -EINVAL; + if (vma->vm_end - vma->vm_start != PAGE_SIZE) return -EINVAL; |