diff options
Diffstat (limited to 'drivers/net/mlx4')
| -rw-r--r-- | drivers/net/mlx4/qp.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/mlx4/qp.c b/drivers/net/mlx4/qp.c index fa24e659759..ee5484c44a1 100644 --- a/drivers/net/mlx4/qp.c +++ b/drivers/net/mlx4/qp.c @@ -299,3 +299,34 @@ int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp, } EXPORT_SYMBOL_GPL(mlx4_qp_query); +int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt, + struct mlx4_qp_context *context, + struct mlx4_qp *qp, enum mlx4_qp_state *qp_state) +{ + int err; + int i; + enum mlx4_qp_state states[] = { + MLX4_QP_STATE_RST, + MLX4_QP_STATE_INIT, + MLX4_QP_STATE_RTR, + MLX4_QP_STATE_RTS + }; + + for (i = 0; i < ARRAY_SIZE(states) - 1; i++) { + context->flags &= cpu_to_be32(~(0xf << 28)); + context->flags |= cpu_to_be32(states[i + 1] << 28); + err = mlx4_qp_modify(dev, mtt, states[i], states[i + 1], + context, 0, 0, qp); + if (err) { + mlx4_err(dev, "Failed to bring QP to state: " + "%d with error: %d\n", + states[i + 1], err); + return err; + } + + *qp_state = states[i + 1]; + } + + return 0; +} +EXPORT_SYMBOL_GPL(mlx4_qp_to_ready); |