Subject: [net-next 02/14] net/mlx5: DR, Fix the SMFS sync_steering for fast teardown

From: Saeed Mahameed <[email-masked]>
Date: Mon, 24 Oct 2022 14:57:22 +0100

From: Yevgeny Kliteynik <[email-masked]>

If sync happens when the device is in fast teardown, just bail
and don't do anything, because the PCI device is not there any more.

Signed-off-by: Yevgeny Kliteynik <[email-masked]>
Reviewed-by: Alex Vesker <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c
index 16d65fe4f654..b4739eafc180 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.c
@@ -271,6 +271,13 @@ int mlx5dr_cmd_sync_steering(struct mlx5_core_dev *mdev)
 {
 	u32 in[MLX5_ST_SZ_DW(sync_steering_in)] = {};
 
+	/* Skip SYNC in case the device is internal error state.
+	 * Besides a device error, this also happens when we're
+	 * in fast teardown
+	 */
+	if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR)
+		return 0;
+
 	MLX5_SET(sync_steering_in, in, opcode, MLX5_CMD_OP_SYNC_STEERING);
 
 	return mlx5_cmd_exec_in(mdev, sync_steering, in);
-- 
2.37.3