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authorAriel Levkovich <lariel@mellanox.com>2018-04-05 18:53:26 +0300
committerJason Gunthorpe <jgg@mellanox.com>2018-04-05 13:04:48 -0600
commite72bd817aee2bd867a90aac68aca07d99addcb55 (patch)
tree2507417360321af20b5b2357117011022d368310 /drivers/net/ethernet/mellanox/mlx5/core/fw.c
parentIB/uverbs: Add device memory registration ioctl support (diff)
downloadlinux-dev-e72bd817aee2bd867a90aac68aca07d99addcb55.tar.xz
linux-dev-e72bd817aee2bd867a90aac68aca07d99addcb55.zip
net/mlx5: Query device memory capabilities
This patch adds querying of device memory capabilities by the mlx5_core driver during initialization. Device memory capabilities is a new capability type and structure which contains the necessary data that is needed for future device memory allocation. The presence of this new capabilities struct is indicated in the general capabilities struct which is queried first by the driver. If the presence bit is set, the driver will also query the new capabilities struct and save it in the device context. Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fw.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/fw.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 9d11e92fb541..17ec55874714 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -192,6 +192,12 @@ int mlx5_query_hca_caps(struct mlx5_core_dev *dev)
if (MLX5_CAP_GEN(dev, qcam_reg))
mlx5_get_qcam_reg(dev);
+ if (MLX5_CAP_GEN(dev, device_memory)) {
+ err = mlx5_core_get_caps(dev, MLX5_CAP_DEV_MEM);
+ if (err)
+ return err;
+ }
+
return 0;
}