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i40e: disconnect irqs on shutdown

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Combine the ICR0 shutdown with the standard interrupt shutdown, and
add the interrupt clearing to the PCI shutdown path.

This prevents the driver from allowing stray interrupts or causing
system logs from un-handled interrupts.

Change-ID: I48f6ab95cad7f8ca77c1f26c92a51cc1034ced43
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Shannon Nelson 2015-02-21 06:44:33 +00:00 committed by Jeff Kirsher
parent 85e76d0312
commit e147758d9a
1 changed files with 8 additions and 6 deletions
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14
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -3842,6 +3842,12 @@ static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
{
int i;
i40e_stop_misc_vector(pf);
if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
synchronize_irq(pf->msix_entries[0].vector);
free_irq(pf->msix_entries[0].vector, pf);
}
i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
for (i = 0; i < pf->num_alloc_vsi; i++)
if (pf->vsi[i])
@ -9578,12 +9584,6 @@ static void i40e_remove(struct pci_dev *pdev)
if (pf->vsi[pf->lan_vsi])
i40e_vsi_release(pf->vsi[pf->lan_vsi]);
i40e_stop_misc_vector(pf);
if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
synchronize_irq(pf->msix_entries[0].vector);
free_irq(pf->msix_entries[0].vector, pf);
}
/* shutdown and destroy the HMC */
if (pf->hw.hmc.hmc_obj) {
ret_code = i40e_shutdown_lan_hmc(&pf->hw);
@ -9737,6 +9737,8 @@ static void i40e_shutdown(struct pci_dev *pdev)
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_clear_interrupt_scheme(pf);
if (system_state == SYSTEM_POWER_OFF) {
pci_wake_from_d3(pdev, pf->wol_en);
pci_set_power_state(pdev, PCI_D3hot);