Message ID | 556D881F.1020300@solarflare.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c index cd52454..083c534 100644 --- a/drivers/net/ethernet/sfc/ef10_sriov.c +++ b/drivers/net/ethernet/sfc/ef10_sriov.c @@ -417,6 +417,15 @@ static int efx_ef10_pci_sriov_disable(struct efx_nic *efx) { struct pci_dev *dev = efx->pci_dev; + if (!efx->vf_count) + return 0; + + if (pci_vfs_assigned(dev)) { + netif_err(efx, drv, efx->net_dev, "VFs are assigned to guests; " + "please detach them before disabling SR-IOV\n"); + return -EBUSY; + } + pci_disable_sriov(dev); efx_ef10_sriov_free_vf_vswitching(efx); efx->vf_count = 0;