Commit 9b710c80 authored Apr 20, 2023 by Mark Zhang Committed by Greg Kroah-Hartman May 17, 2023

RDMA/mlx5: Use correct device num_ports when modify DC

[ 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: 776a3906 ("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>

parent 9c88c825

drivers/infiniband/hw/mlx5/qp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3350,7 +3350,7 @@ 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;