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author | Shay Drory <shayd@nvidia.com> | 2023-05-03 14:18:23 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-06-09 18:40:53 -0700 |
commit | e71383fb9cd15a28d6c01d2c165a96f1c0bcf418 (patch) | |
tree | d31518068efcdd27cebedac6c77ef039f12e664b /drivers/net/ethernet/mellanox/mlx5/core/dev.c | |
parent | 3f90840305e2b240749aec7dde23f5262e513641 (diff) | |
download | linux-stable-e71383fb9cd15a28d6c01d2c165a96f1c0bcf418.tar.gz linux-stable-e71383fb9cd15a28d6c01d2c165a96f1c0bcf418.tar.bz2 linux-stable-e71383fb9cd15a28d6c01d2c165a96f1c0bcf418.zip |
net/mlx5: Light probe local SFs
In case user wants to configure the SFs, for example: to use only vdpa
functionality, he needs to fully probe a SF, configure what he wants,
and afterward reload the SF.
In order to save the time of the reload, local SFs will probe without
any auxiliary sub-device, so that the SFs can be configured prior to
its full probe.
The defaults of the enable_* devlink params of these SFs are set to
false.
Usage example:
Create SF:
$ devlink port add pci/0000:08:00.0 flavour pcisf pfnum 0 sfnum 11
$ devlink port function set pci/0000:08:00.0/32768 \
hw_addr 00:00:00:00:00:11 state active
Enable ETH auxiliary device:
$ devlink dev param set auxiliary/mlx5_core.sf.1 \
name enable_eth value true cmode driverinit
Now, in order to fully probe the SF, use devlink reload:
$ devlink dev reload auxiliary/mlx5_core.sf.1
At this point the user have SF devlink instance with auxiliary device
for the Ethernet functionality only.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/dev.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/dev.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c index 1b33533b15de..617ac7e5d75c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c @@ -323,6 +323,18 @@ static void del_adev(struct auxiliary_device *adev) auxiliary_device_uninit(adev); } +void mlx5_dev_set_lightweight(struct mlx5_core_dev *dev) +{ + mutex_lock(&mlx5_intf_mutex); + dev->priv.flags |= MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV; + mutex_unlock(&mlx5_intf_mutex); +} + +bool mlx5_dev_is_lightweight(struct mlx5_core_dev *dev) +{ + return dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV; +} + int mlx5_attach_device(struct mlx5_core_dev *dev) { struct mlx5_priv *priv = &dev->priv; @@ -457,6 +469,10 @@ static int add_drivers(struct mlx5_core_dev *dev) if (priv->adev[i]) continue; + if (mlx5_adev_devices[i].is_enabled && + !(mlx5_adev_devices[i].is_enabled(dev))) + continue; + if (mlx5_adev_devices[i].is_supported) is_supported = mlx5_adev_devices[i].is_supported(dev); |