[PATCH rdma-next 10/10] xprtrdma: Enable Relaxed Ordering

[Leon Romanovsky]

From: Avihai Horon <avih...@nvidia.com>

Enable Relaxed Ordering for xprtrdma.

Relaxed Ordering is an optional access flag and as such, it is ignored
by vendors that don't support it.

Signed-off-by: Avihai Horon <avih...@nvidia.com>
Reviewed-by: Michael Guralnik <michael...@nvidia.com>
Signed-off-by: Leon Romanovsky <leo...@nvidia.com>
---
 net/sunrpc/xprtrdma/frwr_ops.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index cfbdd197cdfe..f9334c0a1a13 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -135,7 +135,8 @@ int frwr_mr_init(struct rpcrdma_xprt *r_xprt, struct 
rpcrdma_mr *mr)
        struct ib_mr *frmr;
        int rc;
 
-       frmr = ib_alloc_mr(ep->re_pd, ep->re_mrtype, depth, 0);
+       frmr = ib_alloc_mr(ep->re_pd, ep->re_mrtype, depth,
+                          IB_ACCESS_RELAXED_ORDERING);
        if (IS_ERR(frmr))
                goto out_mr_err;
 
@@ -339,9 +340,10 @@ struct rpcrdma_mr_seg *frwr_map(struct rpcrdma_xprt 
*r_xprt,
        reg_wr = &mr->frwr.fr_regwr;
        reg_wr->mr = ibmr;
        reg_wr->key = ibmr->rkey;
-       reg_wr->access = writing ?
-                        IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
-                        IB_ACCESS_REMOTE_READ;
+       reg_wr->access =
+               (writing ? IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
+                          IB_ACCESS_REMOTE_READ) |
+               IB_ACCESS_RELAXED_ORDERING;
 
        mr->mr_handle = ibmr->rkey;
        mr->mr_length = ibmr->length;
-- 
2.30.2