diff options
| author | Yishai Hadas <yishaih@nvidia.com> | 2022-05-10 12:02:03 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leonro@nvidia.com> | 2022-05-10 15:45:28 +0300 |
| commit | 846e437387e74c44ddc9f3eeec472fd37ca3cdb9 (patch) | |
| tree | bf23477b694b12da9e8fd8af476a9a23592fa569 /include/linux | |
| parent | 2984287c4c19949d7eb451dcad0bd5c54a2a376f (diff) | |
net/mlx5: Expose mlx5_sriov_blocking_notifier_register / unregister APIs
Expose mlx5_sriov_blocking_notifier_register / unregister APIs to let a
VF register to be notified for its enablement / disablement by the PF.
Upon VF probe it will call mlx5_sriov_blocking_notifier_register() with
its notifier block and upon VF remove it will call
mlx5_sriov_blocking_notifier_unregister() to drop its registration.
This can give a VF the ability to clean some resources upon disable
before that the command interface goes down and on the other hand sets
some stuff before that it's enabled.
This may be used by a VF which is migration capable in few cases.(e.g.
PF load/unload upon an health recovery).
Link: https://lore.kernel.org/r/20220510090206.90374-2-yishaih@nvidia.com
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mlx5/driver.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index ff47d49d8be4..6fac5427d899 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -445,6 +445,11 @@ struct mlx5_qp_table { struct radix_tree_root tree; }; +enum { + MLX5_PF_NOTIFY_DISABLE_VF, + MLX5_PF_NOTIFY_ENABLE_VF, +}; + struct mlx5_vf_context { int enabled; u64 port_guid; @@ -455,6 +460,7 @@ struct mlx5_vf_context { u8 port_guid_valid:1; u8 node_guid_valid:1; enum port_state_policy policy; + struct blocking_notifier_head notifier; }; struct mlx5_core_sriov { @@ -1152,6 +1158,12 @@ int mlx5_dm_sw_icm_dealloc(struct mlx5_core_dev *dev, enum mlx5_sw_icm_type type struct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev); void mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev); +int mlx5_sriov_blocking_notifier_register(struct mlx5_core_dev *mdev, + int vf_id, + struct notifier_block *nb); +void mlx5_sriov_blocking_notifier_unregister(struct mlx5_core_dev *mdev, + int vf_id, + struct notifier_block *nb); #ifdef CONFIG_MLX5_CORE_IPOIB struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev, struct ib_device *ibdev, |