From: Mark Zhang <markzhang@nvidia.com>
Date: Thu, 20 Apr 2023 04:39:06 +0300
Subject: [PATCH] RDMA/mlx5: Use correct device num_ports when modify DC
References: bsc#1012628
Patch-mainline: 6.3.2
Git-commit: 746aa3c8cb1a650ff2583497ac646e505831b9b9
[ 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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
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 7cc3b973..86284aba 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4485,7 +4485,7 @@ 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;
--
2.35.3