diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/sriov.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sriov.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c index a249b3c3843d..2eecb831c499 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c @@ -208,6 +208,27 @@ void mlx5_sriov_detach(struct mlx5_core_dev *dev) mlx5_device_disable_sriov(dev); } +static u16 mlx5_get_max_vfs(struct mlx5_core_dev *dev) +{ + u32 out[MLX5_ST_SZ_DW(query_esw_functions_out)] = {}; + u16 host_total_vfs; + int err; + + if (mlx5_core_is_ecpf_esw_manager(dev)) { + err = mlx5_esw_query_functions(dev, out, sizeof(out)); + host_total_vfs = MLX5_GET(query_esw_functions_out, out, + host_params_context.host_total_vfs); + + /* Old FW doesn't support getting total_vfs from esw func + * but supports getting it from pci_sriov. + */ + if (!err && host_total_vfs) + return host_total_vfs; + } + + return pci_sriov_get_totalvfs(dev->pdev); +} + int mlx5_sriov_init(struct mlx5_core_dev *dev) { struct mlx5_core_sriov *sriov = &dev->priv.sriov; @@ -218,6 +239,7 @@ int mlx5_sriov_init(struct mlx5_core_dev *dev) return 0; total_vfs = pci_sriov_get_totalvfs(pdev); + sriov->max_vfs = mlx5_get_max_vfs(dev); sriov->num_vfs = pci_num_vf(pdev); sriov->vfs_ctx = kcalloc(total_vfs, sizeof(*sriov->vfs_ctx), GFP_KERNEL); if (!sriov->vfs_ctx) |