From: Rafi Wiener rafiw@mellanox.com
[ Upstream commit c8973df2da677f375f8b12b6eefca2f44c8884d5 ]
Before QP is closed it changes to ERROR state, when this happens the QP was left with old rate limit that was already removed from the table.
Fixes: 7d29f349a4b9 ("IB/mlx5: Properly adjust rate limit on QP state transitions") Signed-off-by: Rafi Wiener rafiw@mellanox.com Signed-off-by: Oleg Kuporosov olegk@mellanox.com Signed-off-by: Leon Romanovsky leonro@mellanox.com Link: https://lore.kernel.org/r/20191002120243.16971-1-leon@kernel.org Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/mlx5/qp.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 77b1f3fd086ad..900f85ce0fb08 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -2828,10 +2828,12 @@ static int modify_raw_packet_qp_sq(struct mlx5_core_dev *dev, }
/* Only remove the old rate after new rate was set */ - if ((old_rl.rate && - !mlx5_rl_are_equal(&old_rl, &new_rl)) || - (new_state != MLX5_SQC_STATE_RDY)) + if ((old_rl.rate && !mlx5_rl_are_equal(&old_rl, &new_rl)) || + (new_state != MLX5_SQC_STATE_RDY)) { mlx5_rl_remove_rate(dev, &old_rl); + if (new_state != MLX5_SQC_STATE_RDY) + memset(&new_rl, 0, sizeof(new_rl)); + }
ibqp->rl = new_rl; sq->state = new_state;