diff options
| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2008-04-25 23:52:32 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-25 23:52:32 +0200 |
| commit | ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7 (patch) | |
| tree | 93e627fa3d8f7b439625ffec5ccd390d100d67a1 /drivers/net/mlx4/qp.c | |
| parent | mlx4_core: Add HW queues allocation helpers (diff) | |
| download | linux-ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7.tar.xz linux-ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7.zip | |
mlx4_core: Add helper to move QP to ready-to-send
Avoid duplicating code in ethernet and FC modules.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/qp.c')
| -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 fa24e6597591..ee5484c44a18 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); |