diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 15 |
1 files changed, 13 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 f92404c8646e..e91f9d73dc48 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -726,7 +726,9 @@ static bool i40e_vfs_are_assigned(struct i40e_pf *pf) **/ void i40e_free_vfs(struct i40e_pf *pf) { - int i, tmp; + struct i40e_hw *hw = &pf->hw; + u32 reg_idx, bit_idx; + int i, tmp, vf_id; if (!pf->vf) return; @@ -748,8 +750,17 @@ void i40e_free_vfs(struct i40e_pf *pf) kfree(pf->vf); pf->vf = NULL; - if (!i40e_vfs_are_assigned(pf)) + if (!i40e_vfs_are_assigned(pf)) { pci_disable_sriov(pf->pdev); + /* Acknowledge VFLR for all VFS. Without this, VFs will fail to + * work correctly when SR-IOV gets re-enabled. + */ + for (vf_id = 0; vf_id < tmp; vf_id++) { + reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; + bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; + wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx)); + } + } else dev_warn(&pf->pdev->dev, "unable to disable SR-IOV because VFs are assigned.\n"); |