diff options
| author | Shay Drory <shayd@nvidia.com> | 2023-01-24 17:49:53 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-01-30 22:16:15 +0300 |
| commit | caf094b5a156272708b46f423833392af464b664 (patch) | |
| tree | 59b03f6aa482f6e61ab71bd0f7aab7a72aa10575 /drivers/vfio | |
| parent | e951eaaf839921165b0622bc5338c7bf24131812 (diff) | |
| download | linux-caf094b5a156272708b46f423833392af464b664.tar.xz | |
vfio/mlx5: Check whether VF is migratable
Add a check whether VF is migratable. Only if VF is migratable, mark the
VFIO device as migration capable.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20230124144955.139901-2-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.c | 27 | ||||
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.h | 1 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c index 0586f09c69af..e956e79626b7 100644 --- a/drivers/vfio/pci/mlx5/cmd.c +++ b/drivers/vfio/pci/mlx5/cmd.c @@ -7,6 +7,29 @@ enum { CQ_OK = 0, CQ_EMPTY = -1, CQ_POLL_ERR = -2 }; +static int mlx5vf_is_migratable(struct mlx5_core_dev *mdev, u16 func_id) +{ + int query_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); + void *query_cap = NULL, *cap; + int ret; + + query_cap = kzalloc(query_sz, GFP_KERNEL); + if (!query_cap) + return -ENOMEM; + + ret = mlx5_vport_get_other_func_cap(mdev, func_id, query_cap, + MLX5_CAP_GENERAL_2); + if (ret) + goto out; + + cap = MLX5_ADDR_OF(query_hca_cap_out, query_cap, capability); + if (!MLX5_GET(cmd_hca_cap_2, cap, migratable)) + ret = -EOPNOTSUPP; +out: + kfree(query_cap); + return ret; +} + static int mlx5vf_cmd_get_vhca_id(struct mlx5_core_dev *mdev, u16 function_id, u16 *vhca_id); static void @@ -195,6 +218,10 @@ void mlx5vf_cmd_set_migratable(struct mlx5vf_pci_core_device *mvdev, if (mvdev->vf_id < 0) goto end; + ret = mlx5vf_is_migratable(mvdev->mdev, mvdev->vf_id + 1); + if (ret) + goto end; + if (mlx5vf_cmd_get_vhca_id(mvdev->mdev, mvdev->vf_id + 1, &mvdev->vhca_id)) goto end; diff --git a/drivers/vfio/pci/mlx5/cmd.h b/drivers/vfio/pci/mlx5/cmd.h index 5483171d57ad..657d94affe2b 100644 --- a/drivers/vfio/pci/mlx5/cmd.h +++ b/drivers/vfio/pci/mlx5/cmd.h @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/vfio_pci_core.h> #include <linux/mlx5/driver.h> +#include <linux/mlx5/vport.h> #include <linux/mlx5/cq.h> #include <linux/mlx5/qp.h> |