LU-8752 lnet: Stop MLX5 triggering a dump_cqe

[fs/lustre-release.git] / lnet / klnds / o2iblnd / o2iblnd.c

diff --git a/lnet/klnds/o2iblnd/o2iblnd.c b/lnet/klnds/o2iblnd/o2iblnd.c
index c00ae83..ee5a01f 100644 (file)
--- a/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/lnet/klnds/o2iblnd/o2iblnd.c
@@ -23,7 +23,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2015, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1536,7 +1536,10 @@ static int kiblnd_alloc_freg_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo)
                        goto out_middle;
                }
 
-               frd->frd_valid = true;
+               /* There appears to be a bug in MLX5 code where you must
+                * invalidate the rkey of a new FastReg pool before first
+                * using it. Thus, I am marking the FRD invalid here. */
+               frd->frd_valid = false;
 
                list_add_tail(&frd->frd_list, &fpo->fast_reg.fpo_pool_list);
                fpo->fast_reg.fpo_pool_size++;