diff options
| author | Daniel Pieczko <dpieczko@solarflare.com> | 2015-06-02 13:40:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-02 22:57:31 +0300 |
| commit | 71158bf2e748e2710616f59a823619af3c5505a7 (patch) | |
| tree | 954a04778fa5872fc8ec0376b9ec2518f39e7afd /drivers/net/ethernet/sfc/ef10_sriov.c | |
| parent | f00bf2305cabc2313c70575384aee60e8f2a684d (diff) | |
| download | linux-71158bf2e748e2710616f59a823619af3c5505a7.tar.xz | |
sfc: do not allow VFs to be destroyed if assigned to guests
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/ef10_sriov.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10_sriov.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c index cd524543c363..083c534bc4ec 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; |