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| author | Shay Drory <shayd@nvidia.com> | 2023-05-03 14:18:23 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-06-10 04:40:53 +0300 |
| commit | e71383fb9cd15a28d6c01d2c165a96f1c0bcf418 (patch) | |
| tree | d31518068efcdd27cebedac6c77ef039f12e664b /drivers/net/ethernet/mellanox/mlx5/core/sf | |
| parent | 3f90840305e2b240749aec7dde23f5262e513641 (diff) | |
| download | linux-e71383fb9cd15a28d6c01d2c165a96f1c0bcf418.tar.xz | |
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/sf')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c index 0692363cf80e..8fe82f1191bb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c @@ -3,6 +3,7 @@ #include <linux/mlx5/driver.h> #include <linux/mlx5/device.h> +#include <linux/mlx5/eswitch.h> #include "mlx5_core.h" #include "dev.h" #include "devlink.h" @@ -28,6 +29,10 @@ static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxilia mdev->priv.adev_idx = adev->id; sf_dev->mdev = mdev; + /* Only local SFs do light probe */ + if (MLX5_ESWITCH_MANAGER(sf_dev->parent_mdev)) + mlx5_dev_set_lightweight(mdev); + err = mlx5_mdev_init(mdev, MLX5_SF_PROF); if (err) { mlx5_core_warn(mdev, "mlx5_mdev_init on err=%d\n", err); @@ -41,7 +46,10 @@ static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxilia goto remap_err; } - err = mlx5_init_one(mdev); + if (MLX5_ESWITCH_MANAGER(sf_dev->parent_mdev)) + err = mlx5_init_one_light(mdev); + else + err = mlx5_init_one(mdev); if (err) { mlx5_core_warn(mdev, "mlx5_init_one err=%d\n", err); goto init_one_err; @@ -65,7 +73,10 @@ static void mlx5_sf_dev_remove(struct auxiliary_device *adev) mlx5_drain_health_wq(sf_dev->mdev); devlink_unregister(devlink); - mlx5_uninit_one(sf_dev->mdev); + if (mlx5_dev_is_lightweight(sf_dev->mdev)) + mlx5_uninit_one_light(sf_dev->mdev); + else + mlx5_uninit_one(sf_dev->mdev); iounmap(sf_dev->mdev->iseg); mlx5_mdev_uninit(sf_dev->mdev); mlx5_devlink_free(devlink); |