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path: root/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 5bae89550657..044019b9d406 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -791,10 +791,18 @@ void i40e_free_vfs(struct i40e_pf *pf)
if (!pf->vf)
return;
+ /* Disable IOV before freeing resources. This lets any VF drivers
+ * running in the host get themselves cleaned up before we yank
+ * the carpet out from underneath their feet.
+ */
+ if (!pci_vfs_assigned(pf->pdev))
+ pci_disable_sriov(pf->pdev);
+
+ msleep(20); /* let any messages in transit get finished up */
+
/* Disable interrupt 0 so we don't try to handle the VFLR. */
i40e_irq_dynamic_disable_icr0(pf);
- mdelay(10); /* let any messages in transit get finished up */
/* free up vf resources */
tmp = pf->num_alloc_vfs;
pf->num_alloc_vfs = 0;
@@ -813,7 +821,6 @@ void i40e_free_vfs(struct i40e_pf *pf)
* before this function ever gets called.
*/
if (!pci_vfs_assigned(pf->pdev)) {
- pci_disable_sriov(pf->pdev);
/* Acknowledge VFLR for all VFS. Without this, VFs will fail to
* work correctly when SR-IOV gets re-enabled.
*/