IB/hfi1: Support ib_alloc_mr verb

Ported from upstream qib commit
68c02e232b8a ("qib: Support ib_alloc_mr verb")
Tested-by: Jubin John <jubin.john@intel.com>
Reviewed-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/staging/rdma/hfi1/mr.c

@@ -348,11 +348,16 @@ int hfi1_dereg_mr(struct ib_mr *ibmr)
  *
  * Return the memory region on success, otherwise return an errno.
  */
-struct ib_mr *hfi1_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len)
+struct ib_mr *hfi1_alloc_mr(struct ib_pd *pd,
+			    enum ib_mr_type mr_type,
+			    u32 max_num_sg)
 {
 	struct hfi1_mr *mr;
 
-	mr = alloc_mr(max_page_list_len, pd);
+	if (mr_type != IB_MR_TYPE_MEM_REG)
+		return ERR_PTR(-EINVAL);
+
+	mr = alloc_mr(max_num_sg, pd);
 	if (IS_ERR(mr))
 		return (struct ib_mr *)mr;
 

drivers/staging/rdma/hfi1/verbs.c

@@ -2045,6 +2045,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
 	ibdev->reg_phys_mr = hfi1_reg_phys_mr;
 	ibdev->reg_user_mr = hfi1_reg_user_mr;
 	ibdev->dereg_mr = hfi1_dereg_mr;
+	ibdev->alloc_mr = hfi1_alloc_mr;
 	ibdev->alloc_fast_reg_page_list = hfi1_alloc_fast_reg_page_list;
 	ibdev->free_fast_reg_page_list = hfi1_free_fast_reg_page_list;
 	ibdev->alloc_fmr = hfi1_alloc_fmr;

drivers/staging/rdma/hfi1/verbs.h

@@ -1016,7 +1016,9 @@ struct ib_mr *hfi1_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 
 int hfi1_dereg_mr(struct ib_mr *ibmr);
 
-struct ib_mr *hfi1_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len);
+struct ib_mr *hfi1_alloc_mr(struct ib_pd *pd,
+			    enum ib_mr_type mr_type,
+			    u32 max_entries);
 
 struct ib_fast_reg_page_list *hfi1_alloc_fast_reg_page_list(
 				struct ib_device *ibdev, int page_list_len);