diff options
| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2008-04-25 23:27:08 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-25 23:27:08 +0200 |
| commit | 38ae6a535470b959df67ded6798fc542bb212e19 (patch) | |
| tree | 35ee1d5450f0b0f491764ebd22babceb9cbf8f1d /drivers/net | |
| parent | RDMA/nes: Remove volatile qualifier from struct nes_hw_cq.cq_vbase (diff) | |
| download | linux-38ae6a535470b959df67ded6798fc542bb212e19.tar.xz linux-38ae6a535470b959df67ded6798fc542bb212e19.zip | |
mlx4_core: Add HW queues allocation helpers
Wrap doorbell, buffer and MTT allocation in helper functions for
ethernet and FC modules to use.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/mlx4/alloc.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c index 43c6d04bb880..f9d6b4dca180 100644 --- a/drivers/net/mlx4/alloc.c +++ b/drivers/net/mlx4/alloc.c @@ -307,3 +307,49 @@ void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db) mutex_unlock(&priv->pgdir_mutex); } EXPORT_SYMBOL_GPL(mlx4_db_free); + +int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres, + int size, int max_direct) +{ + int err; + + err = mlx4_db_alloc(dev, &wqres->db, 1); + if (err) + return err; + + *wqres->db.db = 0; + + err = mlx4_buf_alloc(dev, size, max_direct, &wqres->buf); + if (err) + goto err_db; + + err = mlx4_mtt_init(dev, wqres->buf.npages, wqres->buf.page_shift, + &wqres->mtt); + if (err) + goto err_buf; + + err = mlx4_buf_write_mtt(dev, &wqres->mtt, &wqres->buf); + if (err) + goto err_mtt; + + return 0; + +err_mtt: + mlx4_mtt_cleanup(dev, &wqres->mtt); +err_buf: + mlx4_buf_free(dev, size, &wqres->buf); +err_db: + mlx4_db_free(dev, &wqres->db); + + return err; +} +EXPORT_SYMBOL_GPL(mlx4_alloc_hwq_res); + +void mlx4_free_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres, + int size) +{ + mlx4_mtt_cleanup(dev, &wqres->mtt); + mlx4_buf_free(dev, size, &wqres->buf); + mlx4_db_free(dev, &wqres->db); +} +EXPORT_SYMBOL_GPL(mlx4_free_hwq_res); |