Subject: [PATCH rdma-next 03/10] RDMA/iser: Enable Relaxed Ordering

From: Leon Romanovsky <[email-masked]>
Date: Mon, 5 Apr 2021 08:23:57 +0300

From: Avihai Horon <[email-masked]>

Enable Relaxed Ordering for iser.

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 <[email-masked]>
Reviewed-by: Max Gurtovoy <[email-masked]>
Reviewed-by: Michael Guralnik <[email-masked]>
Signed-off-by: Leon Romanovsky <[email-masked]>
---
 drivers/infiniband/ulp/iser/iser_memory.c | 10 ++++------
 drivers/infiniband/ulp/iser/iser_verbs.c  |  6 ++++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index afec40da9b58..29849c9e82e8 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -271,9 +271,8 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 	wr->wr.send_flags = 0;
 	wr->mr = mr;
 	wr->key = mr->rkey;
-	wr->access = IB_ACCESS_LOCAL_WRITE |
-		     IB_ACCESS_REMOTE_READ |
-		     IB_ACCESS_REMOTE_WRITE;
+	wr->access = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ |
+		     IB_ACCESS_REMOTE_WRITE | IB_ACCESS_RELAXED_ORDERING;
 	rsc->mr_valid = 1;
 
 	sig_reg->sge.lkey = mr->lkey;
@@ -318,9 +317,8 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 	wr->wr.num_sge = 0;
 	wr->mr = mr;
 	wr->key = mr->rkey;
-	wr->access = IB_ACCESS_LOCAL_WRITE  |
-		     IB_ACCESS_REMOTE_WRITE |
-		     IB_ACCESS_REMOTE_READ;
+	wr->access = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE |
+		     IB_ACCESS_REMOTE_READ | IB_ACCESS_RELAXED_ORDERING;
 
 	rsc->mr_valid = 1;
 
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index 3c370ee25f2f..1e236b1cf29b 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -121,7 +121,8 @@ iser_create_fastreg_desc(struct iser_device *device,
 	else
 		mr_type = IB_MR_TYPE_MEM_REG;
 
-	desc->rsc.mr = ib_alloc_mr(pd, mr_type, size, 0);
+	desc->rsc.mr = ib_alloc_mr(pd, mr_type, size,
+		IB_ACCESS_RELAXED_ORDERING);
 	if (IS_ERR(desc->rsc.mr)) {
 		ret = PTR_ERR(desc->rsc.mr);
 		iser_err("Failed to allocate ib_fast_reg_mr err=%d\n", ret);
@@ -129,7 +130,8 @@ iser_create_fastreg_desc(struct iser_device *device,
 	}
 
 	if (pi_enable) {
-		desc->rsc.sig_mr = ib_alloc_mr_integrity(pd, size, size, 0);
+		desc->rsc.sig_mr = ib_alloc_mr_integrity(pd, size, size,
+			IB_ACCESS_RELAXED_ORDERING);
 		if (IS_ERR(desc->rsc.sig_mr)) {
 			ret = PTR_ERR(desc->rsc.sig_mr);
 			iser_err("Failed to allocate sig_mr err=%d\n", ret);
-- 
2.30.2