diff options
| author | Greg Rose <gregory.v.rose@intel.com> | 2016-05-16 10:26:37 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-06-27 15:37:16 -0700 |
| commit | b33d3b7321bb5ae291851fce31688d2d3c432e6b (patch) | |
| tree | d0d18a128a40997c490587e08dec5c27054e6648 /drivers | |
| parent | 0e8d95f8965dc2e6f22e5b321b73de7b0396dc4a (diff) | |
| download | linux-b33d3b7321bb5ae291851fce31688d2d3c432e6b.tar.bz2 | |
i40e: Clean up MSIX IRQs before suspend
The i40e_suspend() function calls another function that preps the device
for the power save and resume by freeing all the Tx/Rx resources and
interrupts but that function does not free the "other" causes interrupt
vector and IRQ. It also fails to call synchronize_irq() before freeing
the IRQ vectors. This sometimes may result in some AER errors on those
systems with that PCIe error reporting feature enabled.
Call synchronize_irq() before freeing IRQ vectors and explicitly free
the other causes interrupt resources and shut down that MSIX interrupt.
Change-ID: Ib88e4536756518a352446da0232189716618ad81
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index a2b401274def..e071c227c684 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -3950,6 +3950,7 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi) /* clear the affinity_mask in the IRQ descriptor */ irq_set_affinity_hint(pf->msix_entries[vector].vector, NULL); + synchronize_irq(pf->msix_entries[vector].vector); free_irq(pf->msix_entries[vector].vector, vsi->q_vectors[i]); @@ -11451,6 +11452,8 @@ static int i40e_suspend(struct pci_dev *pdev, pm_message_t state) wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0)); wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0)); + i40e_stop_misc_vector(pf); + pci_wake_from_d3(pdev, pf->wol_en); pci_set_power_state(pdev, PCI_D3hot); |