diff options
| author | Manish Chopra | 2014-04-14 10:02:23 -0400 |
|---|---|---|
| committer | David S. Miller | 2014-04-14 13:43:53 -0400 |
| commit | 696f1943a1538bb448c5bf55a18793ad410da00b (patch) | |
| tree | 83dca5a5591e1fdb07979f76e6394262dc7d3a97 /drivers/net | |
| parent | 4f0302277718810494f8c618f28d1edb33af859a (diff) | |
qlcnic: Do not disable SR-IOV when VFs are assigned to VMs
o While disabling SR-IOV when VFs are assigned to VMs causes host crash
so return -EPERM when user request to disable SR-IOV using pci sysfs in
case of VFs are assigned to VMs.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c index 14f748cbf0de..280137991544 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c @@ -461,6 +461,16 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; + if (pci_vfs_assigned(adapter->pdev)) { + netdev_err(adapter->netdev, + "SR-IOV VFs belonging to port %d are assigned to VMs. SR-IOV can not be disabled on this port\n", + adapter->portnum); + netdev_info(adapter->netdev, + "Please detach SR-IOV VFs belonging to port %d from VMs, and then try to disable SR-IOV on this port\n", + adapter->portnum); + return -EPERM; + } + rtnl_lock(); if (netif_running(netdev)) __qlcnic_down(adapter, netdev); |