60 	struct mlx4_ib_mr *mr;  in mlx4_ib_get_dma_mr()  local
63 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);  in mlx4_ib_get_dma_mr()
64 	if (!mr)  in mlx4_ib_get_dma_mr()
68 			    ~0ull, convert_access(acc), 0, 0, &mr->mmr);  in mlx4_ib_get_dma_mr()
72 	err = mlx4_mr_enable(to_mdev(pd->device)->dev, &mr->mmr);  in mlx4_ib_get_dma_mr()
76 	mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;  in mlx4_ib_get_dma_mr()
77 	mr->umem = NULL;  in mlx4_ib_get_dma_mr()
79 	return &mr->ibmr;  in mlx4_ib_get_dma_mr()
82 	(void) mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);  in mlx4_ib_get_dma_mr()
85 	kfree(mr);  in mlx4_ib_get_dma_mr()
145 	struct mlx4_ib_mr *mr;  in mlx4_ib_reg_user_mr()  local
150 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);  in mlx4_ib_reg_user_mr()
151 	if (!mr)  in mlx4_ib_reg_user_mr()
154 	mr->umem = mlx4_get_umem_mr(pd->device, start, length, access_flags);  in mlx4_ib_reg_user_mr()
155 	if (IS_ERR(mr->umem)) {  in mlx4_ib_reg_user_mr()
156 		err = PTR_ERR(mr->umem);  in mlx4_ib_reg_user_mr()
160 	shift = mlx4_ib_umem_calc_optimal_mtt_size(mr->umem, start, &n);  in mlx4_ib_reg_user_mr()
167 			    convert_access(access_flags), n, shift, &mr->mmr);  in mlx4_ib_reg_user_mr()
171 	err = mlx4_ib_umem_write_mtt(dev, &mr->mmr.mtt, mr->umem);  in mlx4_ib_reg_user_mr()
175 	err = mlx4_mr_enable(dev->dev, &mr->mmr);  in mlx4_ib_reg_user_mr()
179 	mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;  in mlx4_ib_reg_user_mr()
180 	mr->ibmr.page_size = 1U << shift;  in mlx4_ib_reg_user_mr()
182 	return &mr->ibmr;  in mlx4_ib_reg_user_mr()
185 	(void) mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);  in mlx4_ib_reg_user_mr()
188 	ib_umem_release(mr->umem);  in mlx4_ib_reg_user_mr()
191 	kfree(mr);  in mlx4_ib_reg_user_mr()
196 struct ib_mr *mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, u64 start,  in mlx4_ib_rereg_user_mr()  argument
201 	struct mlx4_ib_dev *dev = to_mdev(mr->device);  in mlx4_ib_rereg_user_mr()
202 	struct mlx4_ib_mr *mmr = to_mmr(mr);  in mlx4_ib_rereg_user_mr()
243 		mmr->umem = mlx4_get_umem_mr(mr->device, start, length,  in mlx4_ib_rereg_user_mr()
288 		      struct mlx4_ib_mr *mr,  in mlx4_alloc_priv_pages()  argument
298 	mr->page_map_size = roundup(max_pages * sizeof(u64),  in mlx4_alloc_priv_pages()
302 	mr->pages = (__be64 *)get_zeroed_page(GFP_KERNEL);  in mlx4_alloc_priv_pages()
303 	if (!mr->pages)  in mlx4_alloc_priv_pages()
306 	mr->page_map = dma_map_single(device->dev.parent, mr->pages,  in mlx4_alloc_priv_pages()
307 				      mr->page_map_size, DMA_TO_DEVICE);  in mlx4_alloc_priv_pages()
309 	if (dma_mapping_error(device->dev.parent, mr->page_map)) {  in mlx4_alloc_priv_pages()
317 	free_page((unsigned long)mr->pages);  in mlx4_alloc_priv_pages()
322 mlx4_free_priv_pages(struct mlx4_ib_mr *mr)  in mlx4_free_priv_pages()  argument
324 	if (mr->pages) {  in mlx4_free_priv_pages()
325 		struct ib_device *device = mr->ibmr.device;  in mlx4_free_priv_pages()
327 		dma_unmap_single(device->dev.parent, mr->page_map,  in mlx4_free_priv_pages()
328 				 mr->page_map_size, DMA_TO_DEVICE);  in mlx4_free_priv_pages()
329 		free_page((unsigned long)mr->pages);  in mlx4_free_priv_pages()
330 		mr->pages = NULL;  in mlx4_free_priv_pages()
336 	struct mlx4_ib_mr *mr = to_mmr(ibmr);  in mlx4_ib_dereg_mr()  local
339 	mlx4_free_priv_pages(mr);  in mlx4_ib_dereg_mr()
341 	ret = mlx4_mr_free(to_mdev(ibmr->device)->dev, &mr->mmr);  in mlx4_ib_dereg_mr()
344 	if (mr->umem)  in mlx4_ib_dereg_mr()
345 		ib_umem_release(mr->umem);  in mlx4_ib_dereg_mr()
346 	kfree(mr);  in mlx4_ib_dereg_mr()
386 	struct mlx4_ib_mr *mr;  in mlx4_ib_alloc_mr()  local
393 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);  in mlx4_ib_alloc_mr()
394 	if (!mr)  in mlx4_ib_alloc_mr()
398 			    max_num_sg, 0, &mr->mmr);  in mlx4_ib_alloc_mr()
402 	err = mlx4_alloc_priv_pages(pd->device, mr, max_num_sg);  in mlx4_ib_alloc_mr()
406 	mr->max_pages = max_num_sg;  in mlx4_ib_alloc_mr()
407 	err = mlx4_mr_enable(dev->dev, &mr->mmr);  in mlx4_ib_alloc_mr()
411 	mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;  in mlx4_ib_alloc_mr()
412 	mr->umem = NULL;  in mlx4_ib_alloc_mr()
414 	return &mr->ibmr;  in mlx4_ib_alloc_mr()
417 	mr->ibmr.device = pd->device;  in mlx4_ib_alloc_mr()
418 	mlx4_free_priv_pages(mr);  in mlx4_ib_alloc_mr()
420 	(void) mlx4_mr_free(dev->dev, &mr->mmr);  in mlx4_ib_alloc_mr()
422 	kfree(mr);  in mlx4_ib_alloc_mr()
428 	struct mlx4_ib_mr *mr = to_mmr(ibmr);  in mlx4_set_page()  local
430 	if (unlikely(mr->npages == mr->max_pages))  in mlx4_set_page()
433 	mr->pages[mr->npages++] = cpu_to_be64(addr | MLX4_MTT_FLAG_PRESENT);  in mlx4_set_page()
441 	struct mlx4_ib_mr *mr = to_mmr(ibmr);  in mlx4_ib_map_mr_sg()  local
444 	mr->npages = 0;  in mlx4_ib_map_mr_sg()
446 	ib_dma_sync_single_for_cpu(ibmr->device, mr->page_map,  in mlx4_ib_map_mr_sg()
447 				   mr->page_map_size, DMA_TO_DEVICE);  in mlx4_ib_map_mr_sg()
451 	ib_dma_sync_single_for_device(ibmr->device, mr->page_map,  in mlx4_ib_map_mr_sg()
452 				      mr->page_map_size, DMA_TO_DEVICE);  in mlx4_ib_map_mr_sg()