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From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>,
	Jason Gunthorpe <jgg@mellanox.com>,
	"David S . Miller" <davem@davemloft.net>,
	Santosh Shilimkar <santosh.shilimkar@oracle.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
	RDMA mailing list <linux-rdma@vger.kernel.org>,
	Hans Westgaard Ry <hans.westgaard.ry@oracle.com>,
	Moni Shoua <monis@mellanox.com>,
	linux-netdev <netdev@vger.kernel.org>
Subject: [PATCH mlx5-next 06/10] IB/mlx5: Mask out unsupported ODP capabilities for kernel QPs
Date: Wed, 15 Jan 2020 14:43:36 +0200
Message-ID: <20200115124340.79108-7-leon@kernel.org> (raw)
In-Reply-To: <20200115124340.79108-1-leon@kernel.org>

From: Moni Shoua <monis@mellanox.com>

The ODP handler for WQEs in RQ or SRQ is not implented for kernel QPs.
Therefore don't report support in these if query comes from a kernel user.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/hw/mlx5/main.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index e34531d5c806..01fc09f3ddd3 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1015,6 +1015,23 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		if (dev->odp_caps.general_caps & IB_ODP_SUPPORT)
 			props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
 		props->odp_caps = dev->odp_caps;
+		if (!uhw) {
+			/* ODP for kernel QPs is not implemented for receive
+			 * WQEs and SRQ WQEs
+			 */
+			props->odp_caps.per_transport_caps.rc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.uc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.ud_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+			props->odp_caps.per_transport_caps.xrc_odp_caps &=
+				~(IB_ODP_SUPPORT_READ |
+				  IB_ODP_SUPPORT_SRQ_RECV);
+		}
 	}

 	if (MLX5_CAP_GEN(mdev, cd))
--
2.20.1


  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-15 12:43 [PATCH mlx5-next 00/10] Use ODP MRs for kernel ULPs Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 01/10] IB: Allow calls to ib_umem_get from " Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 02/10] IB/core: Introduce ib_reg_user_mr Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 03/10] IB/core: Add interface to advise_mr for kernel users Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 04/10] IB/mlx5: Add ODP WQE handlers for kernel QPs Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 05/10] RDMA/mlx5: Don't fake udata for kernel path Leon Romanovsky
2020-01-15 12:43 ` Leon Romanovsky [this message]
2020-01-15 12:43 ` [PATCH mlx5-next 07/10] RDMA/mlx5: Fix handling of IOVA != user_va in ODP paths Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 08/10] net/rds: Detect need of On-Demand-Paging memory registration Leon Romanovsky
2020-01-15 21:42   ` santosh.shilimkar
2020-01-15 12:43 ` [PATCH mlx5-next 09/10] net/rds: Handle ODP mr registration/unregistration Leon Romanovsky
2020-01-15 21:51   ` santosh.shilimkar
2020-01-16  7:11     ` Leon Romanovsky
2020-01-16  7:22       ` santosh.shilimkar
2020-01-18 10:19   ` Leon Romanovsky
2020-01-15 12:43 ` [PATCH mlx5-next 10/10] net/rds: Use prefetch for On-Demand-Paging MR Leon Romanovsky
2020-01-15 21:43   ` santosh.shilimkar
2020-01-16  6:59 ` [PATCH mlx5-next 00/10] Use ODP MRs for kernel ULPs Leon Romanovsky
2020-01-16 13:57   ` Jason Gunthorpe
2020-01-16 14:04     ` Leon Romanovsky
2020-01-16 19:34     ` santosh.shilimkar
2020-01-17 14:12       ` Jason Gunthorpe

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