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Commit 71158bf2 authored by Daniel Pieczko's avatar Daniel Pieczko Committed by David S. Miller
Browse files

sfc: do not allow VFs to be destroyed if assigned to guests 



Signed-off-by: default avatarShradha Shah <sshah@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f00bf230

drivers/net/ethernet/sfc/ef10_sriov.c

+9 −0
Original line number Diff line number Diff line
@@ -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;