RDMA/core: Add memory management extensions support

[safe/jmp/linux-2.6] / drivers / infiniband / core / verbs.c

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 9f399d3..e0fbe59 100644 (file)
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -753,6 +753,52 @@ int ib_dereg_mr(struct ib_mr *mr)
 }
 EXPORT_SYMBOL(ib_dereg_mr);
 
+struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len)
+{
+       struct ib_mr *mr;
+
+       if (!pd->device->alloc_fast_reg_mr)
+               return ERR_PTR(-ENOSYS);
+
+       mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len);
+
+       if (!IS_ERR(mr)) {
+               mr->device  = pd->device;
+               mr->pd      = pd;
+               mr->uobject = NULL;
+               atomic_inc(&pd->usecnt);
+               atomic_set(&mr->usecnt, 0);
+       }
+
+       return mr;
+}
+EXPORT_SYMBOL(ib_alloc_fast_reg_mr);
+
+struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device,
+                                                         int max_page_list_len)
+{
+       struct ib_fast_reg_page_list *page_list;
+
+       if (!device->alloc_fast_reg_page_list)
+               return ERR_PTR(-ENOSYS);
+
+       page_list = device->alloc_fast_reg_page_list(device, max_page_list_len);
+
+       if (!IS_ERR(page_list)) {
+               page_list->device = device;
+               page_list->max_page_list_len = max_page_list_len;
+       }
+
+       return page_list;
+}
+EXPORT_SYMBOL(ib_alloc_fast_reg_page_list);
+
+void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list)
+{
+       page_list->device->free_fast_reg_page_list(page_list);
+}
+EXPORT_SYMBOL(ib_free_fast_reg_page_list);
+
 /* Memory windows */
 
 struct ib_mw *ib_alloc_mw(struct ib_pd *pd)