[PATCH rdma-next 05/10] RDMA/srp: Enable Relaxed Ordering

Leon Romanovsky
2021-04-05T05:24:32Z

From: Avihai Horon <avihaih@nvidia.com>

Enable Relaxed Ordering for srp.

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 <avihaih@nvidia.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/ulp/srp/ib_srp.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 8481ad769ba4..0026660c3ead 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -436,7 +436,8 @@ static struct srp_fr_pool *srp_create_fr_pool(struct ib_device *device,
mr_type = IB_MR_TYPE_MEM_REG;

for (i = 0, d = &pool->desc[0]; i < pool->size; i++, d++) {
- mr = ib_alloc_mr(pd, mr_type, max_page_list_len, 0);
+ mr = ib_alloc_mr(pd, mr_type, max_page_list_len,
+ IB_ACCESS_RELAXED_ORDERING);
if (IS_ERR(mr)) {
ret = PTR_ERR(mr);
if (ret == -ENOMEM)
@@ -1487,9 +1488,8 @@ static int srp_map_finish_fr(struct srp_map_state *state,
wr.wr.send_flags = 0;
wr.mr = desc->mr;
wr.key = desc->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);

*state->fr.next++ = desc;
state->nmdesc++;
--
2.30.2