5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Guralnik <michaelgur@xxxxxxxxxx>
[ Upstream commit be121ffb384f53e966ee7299ffccc6eeb61bc73d ]
Set the correct port when querying PPCNT in multi-port configuration.
Distinguish between cases where switchdev mode was enabled to multi-port
configuration and don't overwrite the queried port to 1 in multi-port
case.
Fixes: 74b30b3ad5ce ("RDMA/mlx5: Set local port to one when accessing counters")
Signed-off-by: Michael Guralnik <michaelgur@xxxxxxxxxx>
Link: https://lore.kernel.org/r/9bfcc8ade958b760a51408c3ad654a01b11f7d76.1712134988.git.leon@xxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/mad.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c
index 3897a3ce02ad0..84d72b3b6df84 100644
--- a/drivers/infiniband/hw/mlx5/mad.c
+++ b/drivers/infiniband/hw/mlx5/mad.c
@@ -219,7 +219,8 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u8 port_num,
mdev = dev->mdev;
mdev_port_num = 1;
}
- if (MLX5_CAP_GEN(dev->mdev, num_ports) == 1) {
+ if (MLX5_CAP_GEN(dev->mdev, num_ports) == 1 &&
+ !mlx5_core_mp_enabled(mdev)) {
/* set local port to one for Function-Per-Port HCA. */
mdev = dev->mdev;
mdev_port_num = 1;
--
2.43.0
