diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/efx.c')
-rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 86639b1e4e5c..4c2d305089ce 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1490,97 +1490,6 @@ static const struct dev_pm_ops efx_pm_ops = { .restore = efx_pm_resume, }; -/* A PCI error affecting this device was detected. - * At this point MMIO and DMA may be disabled. - * Stop the software path and request a slot reset. - */ -static pci_ers_result_t efx_io_error_detected(struct pci_dev *pdev, - enum pci_channel_state state) -{ - pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; - struct efx_nic *efx = pci_get_drvdata(pdev); - - if (state == pci_channel_io_perm_failure) - return PCI_ERS_RESULT_DISCONNECT; - - rtnl_lock(); - - if (efx->state != STATE_DISABLED) { - efx->state = STATE_RECOVERY; - efx->reset_pending = 0; - - efx_device_detach_sync(efx); - - efx_stop_all(efx); - efx_disable_interrupts(efx); - - status = PCI_ERS_RESULT_NEED_RESET; - } else { - /* If the interface is disabled we don't want to do anything - * with it. - */ - status = PCI_ERS_RESULT_RECOVERED; - } - - rtnl_unlock(); - - pci_disable_device(pdev); - - return status; -} - -/* Fake a successful reset, which will be performed later in efx_io_resume. */ -static pci_ers_result_t efx_io_slot_reset(struct pci_dev *pdev) -{ - struct efx_nic *efx = pci_get_drvdata(pdev); - pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; - - if (pci_enable_device(pdev)) { - netif_err(efx, hw, efx->net_dev, - "Cannot re-enable PCI device after reset.\n"); - status = PCI_ERS_RESULT_DISCONNECT; - } - - return status; -} - -/* Perform the actual reset and resume I/O operations. */ -static void efx_io_resume(struct pci_dev *pdev) -{ - struct efx_nic *efx = pci_get_drvdata(pdev); - int rc; - - rtnl_lock(); - - if (efx->state == STATE_DISABLED) - goto out; - - rc = efx_reset(efx, RESET_TYPE_ALL); - if (rc) { - netif_err(efx, hw, efx->net_dev, - "efx_reset failed after PCI error (%d)\n", rc); - } else { - efx->state = STATE_READY; - netif_dbg(efx, hw, efx->net_dev, - "Done resetting and resuming IO after PCI error.\n"); - } - -out: - rtnl_unlock(); -} - -/* For simplicity and reliability, we always require a slot reset and try to - * reset the hardware when a pci error affecting the device is detected. - * We leave both the link_reset and mmio_enabled callback unimplemented: - * with our request for slot reset the mmio_enabled callback will never be - * called, and the link_reset callback is not used by AER or EEH mechanisms. - */ -static const struct pci_error_handlers efx_err_handlers = { - .error_detected = efx_io_error_detected, - .slot_reset = efx_io_slot_reset, - .resume = efx_io_resume, -}; - static struct pci_driver efx_pci_driver = { .name = KBUILD_MODNAME, .id_table = efx_pci_table, |