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From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Meir Lichtinger <meirl@mellanox.com>,
	linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
	Saeed Mahameed <saeedm@mellanox.com>
Subject: [PATCH mlx5-next 1/3] RDMA/mlx5: ConnectX-7 new capabilities to set relaxed ordering by UMR
Date: Thu, 16 Jul 2020 13:52:46 +0300
Message-ID: <20200716105248.1423452-2-leon@kernel.org> (raw)
In-Reply-To: <20200716105248.1423452-1-leon@kernel.org>

From: Meir Lichtinger <meirl@mellanox.com>

Up to ConnectX-7 setting mkey relaxed ordering read/write attributes
by UMR is not supported. ConnectX-7 supports this option, which is
indicated by two new HCA capabilities - relaxed_ordering_write_umr
and relaxed_ordering_read_umr.

Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
Not based on latest mlx5-next.
---
 include/linux/mlx5/mlx5_ifc.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index d22b3ff99b7a..2999a026938a 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1216,7 +1216,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {

 	u8         max_sgl_for_optimized_performance[0x8];
 	u8         log_max_cq_sz[0x8];
-	u8         reserved_at_d0[0xb];
+	u8         relaxed_ordering_write_umr[0x1];
+	u8         relaxed_ordering_read_umr[0x1];
+	u8         reserved_at_d2[0x9];
 	u8         log_max_cq[0x5];

 	u8         log_max_eq_sz[0x8];
--
2.26.2


  reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-16 10:52 [PATCH rdma-next 0/3] Create UMR with relaxed ordering Leon Romanovsky
2020-07-16 10:52 ` Leon Romanovsky [this message]
2020-07-16 10:52 ` [PATCH rdma-next 2/3] RDMA/mlx5: Use MLX5_SET macro instead of local structure Leon Romanovsky
2020-07-16 10:52 ` [PATCH rdma-next 3/3] RDMA/mlx5: Set mkey relaxed ordering by UMR with ConnectX-7 Leon Romanovsky
2020-07-24 18:48 ` [PATCH rdma-next 0/3] Create UMR with relaxed ordering Jason Gunthorpe
2020-07-24 19:31 ` Leon Romanovsky
2020-07-27 14:47   ` Jason Gunthorpe

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