C++ (Cpp) mlx5_eswitch_disable_sriov示例

示例#1

文件： sriov.c 项目： mdamt/linux

static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev)
{
	struct mlx5_core_sriov *sriov = &dev->priv.sriov;
	int err;
	int vf;

	if (!sriov->enabled_vfs)
#ifdef CONFIG_MLX5_CORE_EN
		goto disable_sriov_resources;
#else
		return;
#endif

	for (vf = 0; vf < sriov->num_vfs; vf++) {
		if (!sriov->vfs_ctx[vf].enabled)
			continue;
		err = mlx5_core_disable_hca(dev, vf + 1);
		if (err) {
			mlx5_core_warn(dev, "failed to disable VF %d\n", vf);
			continue;
		}
		sriov->vfs_ctx[vf].enabled = 0;
		sriov->enabled_vfs--;
	}

#ifdef CONFIG_MLX5_CORE_EN
disable_sriov_resources:
	mlx5_eswitch_disable_sriov(dev->priv.eswitch);
#endif

	if (mlx5_wait_for_vf_pages(dev))
		mlx5_core_warn(dev, "timeout reclaiming VFs pages\n");
}

示例#2

文件： sriov.c 项目： Lyude/linux

static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev)
{
	struct mlx5_core_sriov *sriov = &dev->priv.sriov;
	int err;
	int vf;

	if (!sriov->enabled_vfs)
		goto out;

	for (vf = 0; vf < sriov->num_vfs; vf++) {
		if (!sriov->vfs_ctx[vf].enabled)
			continue;
		err = mlx5_core_disable_hca(dev, vf + 1);
		if (err) {
			mlx5_core_warn(dev, "failed to disable VF %d\n", vf);
			continue;
		}
		sriov->vfs_ctx[vf].enabled = 0;
		sriov->enabled_vfs--;
	}

out:
	if (MLX5_ESWITCH_MANAGER(dev))
		mlx5_eswitch_disable_sriov(dev->priv.eswitch);

	if (mlx5_wait_for_vf_pages(dev))
		mlx5_core_warn(dev, "timeout reclaiming VFs pages\n");
}

示例#3

文件： sriov.c 项目： AK101111/linux

int mlx5_core_sriov_configure(struct pci_dev *pdev, int num_vfs)
{
	struct mlx5_core_dev *dev  = pci_get_drvdata(pdev);
	struct mlx5_core_sriov *sriov = &dev->priv.sriov;
	int err;

	mlx5_core_dbg(dev, "requested num_vfs %d\n", num_vfs);
	if (!mlx5_core_is_pf(dev))
		return -EPERM;

	mlx5_core_cleanup_vfs(dev);

	if (!num_vfs) {
#ifdef CONFIG_MLX5_CORE_EN
		mlx5_eswitch_disable_sriov(dev->priv.eswitch);
#endif
		kfree(sriov->vfs_ctx);
		sriov->vfs_ctx = NULL;
		if (!pci_vfs_assigned(pdev))
			pci_disable_sriov(pdev);
		else
			pr_info("unloading PF driver while leaving orphan VFs\n");
		return 0;
	}

	err = mlx5_core_sriov_enable(pdev, num_vfs);
	if (err) {
		dev_warn(&pdev->dev, "mlx5_core_sriov_enable failed %d\n", err);
		return err;
	}

	mlx5_core_init_vfs(dev, num_vfs);
#ifdef CONFIG_MLX5_CORE_EN
	mlx5_eswitch_enable_sriov(dev->priv.eswitch, num_vfs, SRIOV_LEGACY);
#endif

	return num_vfs;
}