diff mbox series

[rdma-next] RDMA/mlx5: Use correct device num_ports when modify DC

Message ID 20230420013906.1244185-1-markzhang@nvidia.com (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show
Series [rdma-next] RDMA/mlx5: Use correct device num_ports when modify DC | expand

Commit Message

Mark Zhang April 20, 2023, 1:39 a.m. UTC
Just like other QP types, when modify DC, the port_num should be
compared with dev->num_ports, instead of HCA_CAP.num_ports.
Otherwise Multi-port vHCA on DC may not work.

Fixes: 776a3906b692 ("IB/mlx5: Add support for DC target QP")
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
---
 drivers/infiniband/hw/mlx5/qp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jason Gunthorpe April 21, 2023, 3:39 p.m. UTC | #1
On Thu, Apr 20, 2023 at 04:39:06AM +0300, Mark Zhang wrote:
> Just like other QP types, when modify DC, the port_num should be
> compared with dev->num_ports, instead of HCA_CAP.num_ports.
> Otherwise Multi-port vHCA on DC may not work.
> 
> Fixes: 776a3906b692 ("IB/mlx5: Add support for DC target QP")
> Signed-off-by: Mark Zhang <markzhang@nvidia.com>
> Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
> ---
>  drivers/infiniband/hw/mlx5/qp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to for-next, thanks

Jason
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 1093d3a0ed43..70ca8ffa9256 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4493,7 +4493,7 @@  static int mlx5_ib_modify_dct(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 			return -EINVAL;
 
 		if (attr->port_num == 0 ||
-		    attr->port_num > MLX5_CAP_GEN(dev->mdev, num_ports)) {
+		    attr->port_num > dev->num_ports) {
 			mlx5_ib_dbg(dev, "invalid port number %d. number of ports is %d\n",
 				    attr->port_num, dev->num_ports);
 			return -EINVAL;