77 	mr->umem = NULL;  in mlx4_ib_get_dma_mr()
183 			   struct ib_umem *umem)  in mlx4_ib_umem_write_mtt()  argument
203 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, i) {  in mlx4_ib_umem_write_mtt()
257 int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va,  in mlx4_ib_umem_calc_optimal_mtt_size()  argument
274 	*num_of_mtts = ib_umem_num_dma_blocks(umem, PAGE_SIZE);  in mlx4_ib_umem_calc_optimal_mtt_size()
276 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, i) {  in mlx4_ib_umem_calc_optimal_mtt_size()
420 	mr->umem = mlx4_get_umem_mr(pd->device, start, length, access_flags);  in mlx4_ib_reg_user_mr()
421 	if (IS_ERR(mr->umem)) {  in mlx4_ib_reg_user_mr()
422 		err = PTR_ERR(mr->umem);  in mlx4_ib_reg_user_mr()
426 	shift = mlx4_ib_umem_calc_optimal_mtt_size(mr->umem, start, &n);  in mlx4_ib_reg_user_mr()
433 	err = mlx4_ib_umem_write_mtt(dev, &mr->mmr.mtt, mr->umem);  in mlx4_ib_reg_user_mr()
450 	ib_umem_release(mr->umem);  in mlx4_ib_reg_user_mr()
488 		    !mmr->umem->writable) {  in mlx4_ib_rereg_user_mr()
505 		ib_umem_release(mmr->umem);  in mlx4_ib_rereg_user_mr()
506 		mmr->umem = mlx4_get_umem_mr(mr->device, start, length,  in mlx4_ib_rereg_user_mr()
508 		if (IS_ERR(mmr->umem)) {  in mlx4_ib_rereg_user_mr()
509 			err = PTR_ERR(mmr->umem);  in mlx4_ib_rereg_user_mr()
511 			mmr->umem = NULL;  in mlx4_ib_rereg_user_mr()
514 		n = ib_umem_num_dma_blocks(mmr->umem, PAGE_SIZE);  in mlx4_ib_rereg_user_mr()
521 			ib_umem_release(mmr->umem);  in mlx4_ib_rereg_user_mr()
527 		err = mlx4_ib_umem_write_mtt(dev, &mmr->mmr.mtt, mmr->umem);  in mlx4_ib_rereg_user_mr()
530 			ib_umem_release(mmr->umem);  in mlx4_ib_rereg_user_mr()
606 	if (mr->umem)  in mlx4_ib_dereg_mr()
607 		ib_umem_release(mr->umem);  in mlx4_ib_dereg_mr()
674 	mr->umem = NULL;  in mlx4_ib_alloc_mr()