diff options
Diffstat (limited to 'drivers/net/cxgb4/cxgb4_main.c')
| -rw-r--r-- | drivers/net/cxgb4/cxgb4_main.c | 108 |
1 files changed, 107 insertions, 1 deletions
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c index 60f6ea05167a..baf4f0a31362 100644 --- a/drivers/net/cxgb4/cxgb4_main.c +++ b/drivers/net/cxgb4/cxgb4_main.c @@ -2483,6 +2483,7 @@ static void cxgb_down(struct adapter *adapter) t4_intr_disable(adapter); cancel_work_sync(&adapter->tid_release_task); adapter->tid_release_task_busy = false; + adapter->tid_release_head = NULL; if (adapter->flags & USING_MSIX) { free_msix_queue_irqs(adapter); @@ -2907,6 +2908,108 @@ bye: if (ret != -ETIMEDOUT && ret != -EIO) return ret; } +/* EEH callbacks */ + +static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + int i; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) + goto out; + + rtnl_lock(); + adap->flags &= ~FW_OK; + notify_ulds(adap, CXGB4_STATE_START_RECOVERY); + for_each_port(adap, i) { + struct net_device *dev = adap->port[i]; + + netif_device_detach(dev); + netif_carrier_off(dev); + } + if (adap->flags & FULL_INIT_DONE) + cxgb_down(adap); + rtnl_unlock(); + pci_disable_device(pdev); +out: return state == pci_channel_io_perm_failure ? + PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; +} + +static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev) +{ + int i, ret; + struct fw_caps_config_cmd c; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) { + pci_restore_state(pdev); + pci_save_state(pdev); + return PCI_ERS_RESULT_RECOVERED; + } + + if (pci_enable_device(pdev)) { + dev_err(&pdev->dev, "cannot reenable PCI device after reset\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + + pci_set_master(pdev); + pci_restore_state(pdev); + pci_save_state(pdev); + pci_cleanup_aer_uncorrect_error_status(pdev); + + if (t4_wait_dev_ready(adap) < 0) + return PCI_ERS_RESULT_DISCONNECT; + if (t4_fw_hello(adap, 0, 0, MASTER_MUST, NULL)) + return PCI_ERS_RESULT_DISCONNECT; + adap->flags |= FW_OK; + if (adap_init1(adap, &c)) + return PCI_ERS_RESULT_DISCONNECT; + + for_each_port(adap, i) { + struct port_info *p = adap2pinfo(adap, i); + + ret = t4_alloc_vi(adap, 0, p->tx_chan, 0, 0, 1, NULL, NULL); + if (ret < 0) + return PCI_ERS_RESULT_DISCONNECT; + p->viid = ret; + p->xact_addr_filt = -1; + } + + t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, + adap->params.b_wnd); + if (cxgb_up(adap)) + return PCI_ERS_RESULT_DISCONNECT; + return PCI_ERS_RESULT_RECOVERED; +} + +static void eeh_resume(struct pci_dev *pdev) +{ + int i; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) + return; + + rtnl_lock(); + for_each_port(adap, i) { + struct net_device *dev = adap->port[i]; + + if (netif_running(dev)) { + link_start(dev); + cxgb_set_rxmode(dev); + } + netif_device_attach(dev); + } + rtnl_unlock(); +} + +static struct pci_error_handlers cxgb4_eeh = { + .error_detected = eeh_err_detected, + .slot_reset = eeh_slot_reset, + .resume = eeh_resume, +}; + static inline bool is_10g_port(const struct link_config *lc) { return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0; @@ -3154,8 +3257,10 @@ static int __devinit init_one(struct pci_dev *pdev, /* We control everything through PF 0 */ func = PCI_FUNC(pdev->devfn); - if (func > 0) + if (func > 0) { + pci_save_state(pdev); /* to restore SR-IOV later */ goto sriov; + } err = pci_enable_device(pdev); if (err) { @@ -3396,6 +3501,7 @@ static struct pci_driver cxgb4_driver = { .id_table = cxgb4_pci_tbl, .probe = init_one, .remove = __devexit_p(remove_one), + .err_handler = &cxgb4_eeh, }; static int __init cxgb4_init_module(void) |