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| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2008-04-25 14:52:32 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-25 14:52:32 -0700 |
| commit | ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7 (patch) | |
| tree | 93e627fa3d8f7b439625ffec5ccd390d100d67a1 | |
| parent | 38ae6a535470b959df67ded6798fc542bb212e19 (diff) | |
| download | linux-ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7.tar.gz linux-ed4d3c1061d6f367a4ef5e1656c25af3314fe2b7.tar.bz2 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>
| -rw-r--r-- | drivers/net/mlx4/qp.c | 31 | ||||
| -rw-r--r-- | include/linux/mlx4/qp.h | 4 |
2 files changed, 35 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); diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index a5e43febee4f..7f128b266faa 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -296,6 +296,10 @@ int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt, int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp, struct mlx4_qp_context *context); +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); + static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn) { return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1)); |