From: Mark Zhang markzhang@nvidia.com
[ Upstream commit 746aa3c8cb1a650ff2583497ac646e505831b9b9 ]
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") Link: https://lore.kernel.org/r/20230420013906.1244185-1-markzhang@nvidia.com Signed-off-by: Mark Zhang markzhang@nvidia.com Reviewed-by: Maor Gottlieb maorg@nvidia.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/mlx5/qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 55b05a3e31b8e..1080daf3a546f 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -4406,7 +4406,7 @@ 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;