From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Guy Levi <guyle@mellanox.com>, Ido Kalir <idok@mellanox.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Majd Dibbiny <majd@mellanox.com>,
Mark Zhang <markz@mellanox.com>, Moni Shoua <monis@mellanox.com>
Subject: [PATCH rdma-rc 7/8] IB/mlx5: Fix MR re-registration flow to use UMR properly
Date: Thu, 15 Aug 2019 11:38:33 +0300 [thread overview]
Message-ID: <20190815083834.9245-8-leon@kernel.org> (raw)
In-Reply-To: <20190815083834.9245-1-leon@kernel.org>
From: Moni Shoua <monis@mellanox.com>
The UMR WQE in the MR re-registration flow requires that
modify_atomic and modify_entity_size capabilities are enabled.
Therefore, check that the these capabilities are present before going to
umr flow and go through slow path if not.
Fixes: c8d75a980fab ("IB/mlx5: Respect new UMR capabilities")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/mlx5/mr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 8bce65c03b84..3401f5f6792e 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1446,7 +1446,8 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
goto err;
}
- if (flags & IB_MR_REREG_TRANS && !use_umr_mtt_update(mr, addr, len)) {
+ if (!mlx5_ib_can_use_umr(dev, true) ||
+ (flags & IB_MR_REREG_TRANS && !use_umr_mtt_update(mr, addr, len))) {
/*
* UMR can't be used - MKey needs to be replaced.
*/
--
2.20.1
next prev parent reply other threads:[~2019-08-15 8:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 8:38 [PATCH rdma-rc 0/8] Fixes for v5.3 Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 1/8] IB/core: Fix NULL pointer dereference when bind QP to counter Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 2/8] RDMA/counters: Properly implement PID checks Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 3/8] RDMA/restrack: Rewrite PID namespace check to be reliable Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 4/8] RDMA/mlx5: Fix MR npages calculation for IB_ACCESS_HUGETLB Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 5/8] IB/mlx5: Consolidate use_umr checks into single function Leon Romanovsky
2019-08-15 8:38 ` [PATCH rdma-rc 6/8] IB/mlx5: Report and handle ODP support properly Leon Romanovsky
2019-08-15 8:38 ` Leon Romanovsky [this message]
2019-08-15 8:38 ` [PATCH rdma-rc 8/8] IB/mlx5: Block MR WR if UMR is not possible Leon Romanovsky
2019-08-15 19:29 ` [PATCH rdma-rc 0/8] Fixes for v5.3 Jason Gunthorpe
2019-08-15 20:26 ` Guy Levi(SW)
2019-08-20 16:56 ` Doug Ledford
2019-08-20 17:38 ` Jason Gunthorpe
2019-08-20 17:47 ` Doug Ledford
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