diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index ce53ff25f88d..8413ab548eba 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -1983,6 +1983,16 @@ static int fm10k_resume(struct pci_dev *pdev) if (err) return err; + /* assume host is not ready, to prevent race with watchdog in case we + * actually don't have connection to the switch + */ + interface->host_ready = false; + fm10k_watchdog_host_not_ready(interface); + + /* clear the service task disable bit to allow service task to start */ + clear_bit(__FM10K_SERVICE_DISABLE, &interface->state); + fm10k_service_event_schedule(interface); + /* restore SR-IOV interface */ fm10k_iov_resume(pdev); @@ -2010,6 +2020,15 @@ static int fm10k_suspend(struct pci_dev *pdev, fm10k_iov_suspend(pdev); + /* the watchdog tasks may read registers, which will appear like a + * surprise-remove event once the PCI device is disabled. This will + * cause us to close the netdevice, so we don't retain the open/closed + * state post-resume. Prevent this by disabling the service task while + * suspended, until we actually resume. + */ + set_bit(__FM10K_SERVICE_DISABLE, &interface->state); + cancel_work_sync(&interface->service_task); + rtnl_lock(); if (netif_running(netdev)) |