From e147758d9aef1e41dad331b21df206200cf16e80 Mon Sep 17 00:00:00 2001 From: Shannon Nelson Date: Sat, 21 Feb 2015 06:44:33 +0000 Subject: [PATCH] i40e: disconnect irqs on shutdown 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 Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 9751465f29c7..8bfd2545122d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -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);