diff options
| author | Sean Hefty | 2011-06-02 18:01:33 +0200 |
|---|---|---|
| committer | Roland Dreier | 2011-10-13 18:43:03 +0200 |
| commit | 012a8ff577f95211c6ffd3b77a94c34ebae009b6 (patch) | |
| tree | 7d1e8d3ca131cc46ca12e879c4554870e0be76f2 /drivers/net/mlx4/pd.c | |
| parent | IB/cm: Do not automatically disconnect XRC TGT QPs (diff) | |
| download | kernel-qcow2-linux-012a8ff577f95211c6ffd3b77a94c34ebae009b6.tar.gz kernel-qcow2-linux-012a8ff577f95211c6ffd3b77a94c34ebae009b6.tar.xz kernel-qcow2-linux-012a8ff577f95211c6ffd3b77a94c34ebae009b6.zip | |
IB/mlx4: Add support for XRC domains
Support creating and destroying XRC domains. Any sharing of the XRCD
is managed above the low-level driver.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/net/mlx4/pd.c')
| -rw-r--r-- | drivers/net/mlx4/pd.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c index 1286b886dcea..3736163e30e9 100644 --- a/drivers/net/mlx4/pd.c +++ b/drivers/net/mlx4/pd.c @@ -61,6 +61,24 @@ void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn) } EXPORT_SYMBOL_GPL(mlx4_pd_free); +int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + + *xrcdn = mlx4_bitmap_alloc(&priv->xrcd_bitmap); + if (*xrcdn == -1) + return -ENOMEM; + + return 0; +} +EXPORT_SYMBOL_GPL(mlx4_xrcd_alloc); + +void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn) +{ + mlx4_bitmap_free(&mlx4_priv(dev)->xrcd_bitmap, xrcdn); +} +EXPORT_SYMBOL_GPL(mlx4_xrcd_free); + int mlx4_init_pd_table(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -74,6 +92,18 @@ void mlx4_cleanup_pd_table(struct mlx4_dev *dev) mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap); } +int mlx4_init_xrcd_table(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + + return mlx4_bitmap_init(&priv->xrcd_bitmap, (1 << 16), + (1 << 16) - 1, dev->caps.reserved_xrcds + 1, 0); +} + +void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev) +{ + mlx4_bitmap_cleanup(&mlx4_priv(dev)->xrcd_bitmap); +} int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar) { |