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[v4,rdma-next,07/10] mlx4_ib: set user mr attributes in struct ib_mr

Message ID 2b221f0f1165b5d838f6857137e6f0d759555c59.1520002437.git.swise@opengridcomputing.com (mailing list archive)
State Accepted
Headers show

Commit Message

Steve Wise March 1, 2018, 9:58 p.m. UTC 
Setting iova, length, and page_size allows this information to be
seen via NLDEV netlink queries, which can aid in user rdma debugging.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
---
 drivers/infiniband/hw/mlx4/mr.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Leon Romanovsky March 8, 2018, 2:03 p.m. UTC | #1 
On Thu, Mar 01, 2018 at 01:58:06PM -0800, Steve Wise wrote:
> Setting iova, length, and page_size allows this information to be
> seen via NLDEV netlink queries, which can aid in user rdma debugging.
>
> Signed-off-by: Steve Wise <swise@opengridcomputing.com>
> ---
>  drivers/infiniband/hw/mlx4/mr.c | 3 +++
>  1 file changed, 3 insertions(+)
>

Thanks,
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
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Patch

diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index 4975f3e..17f4f15 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -407,6 +407,9 @@  struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 		goto err_mr;
 
 	mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;
+	mr->ibmr.length = length;
+	mr->ibmr.iova = virt_addr;
+	mr->ibmr.page_size = 1U << shift;
 
 	return &mr->ibmr;