diff options
Diffstat (limited to 'drivers/net/sfc')
| -rw-r--r-- | drivers/net/sfc/efx.c | 45 | ||||
| -rw-r--r-- | drivers/net/sfc/net_driver.h | 2 |
2 files changed, 20 insertions, 27 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index bbc84026dd86..127b4da0a5e7 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -39,6 +39,12 @@ */ static struct workqueue_struct *refill_workqueue; +/* Reset workqueue. If any NIC has a hardware failure then a reset will be + * queued onto this work queue. This is not a per-nic work queue, because + * efx_reset_work() acquires the rtnl lock, so resets are naturally serialised. + */ +static struct workqueue_struct *reset_workqueue; + /************************************************************************** * * Configurable values @@ -1697,7 +1703,7 @@ void efx_schedule_reset(struct efx_nic *efx, enum reset_type type) efx->reset_pending = method; - queue_work(efx->reset_workqueue, &efx->reset_work); + queue_work(reset_workqueue, &efx->reset_work); } /************************************************************************** @@ -1763,7 +1769,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, struct efx_channel *channel; struct efx_tx_queue *tx_queue; struct efx_rx_queue *rx_queue; - int i, rc; + int i; /* Initialise common structures */ memset(efx, 0, sizeof(*efx)); @@ -1832,33 +1838,14 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, interrupt_mode); efx->workqueue = create_singlethread_workqueue("sfc_work"); - if (!efx->workqueue) { - rc = -ENOMEM; - goto fail1; - } - - efx->reset_workqueue = create_singlethread_workqueue("sfc_reset"); - if (!efx->reset_workqueue) { - rc = -ENOMEM; - goto fail2; - } + if (!efx->workqueue) + return -ENOMEM; return 0; - - fail2: - destroy_workqueue(efx->workqueue); - efx->workqueue = NULL; - - fail1: - return rc; } static void efx_fini_struct(struct efx_nic *efx) { - if (efx->reset_workqueue) { - destroy_workqueue(efx->reset_workqueue); - efx->reset_workqueue = NULL; - } if (efx->workqueue) { destroy_workqueue(efx->workqueue); efx->workqueue = NULL; @@ -1923,7 +1910,7 @@ static void efx_pci_remove(struct pci_dev *pci_dev) * scheduled from this point because efx_stop_all() has been * called, we are no longer registered with driverlink, and * the net_device's have been removed. */ - flush_workqueue(efx->reset_workqueue); + cancel_work_sync(&efx->reset_work); efx_pci_remove_main(efx); @@ -2045,7 +2032,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, * scheduled since efx_stop_all() has been called, and we * have not and never have been registered with either * the rtnetlink or driverlink layers. */ - flush_workqueue(efx->reset_workqueue); + cancel_work_sync(&efx->reset_work); /* Retry if a recoverably reset event has been scheduled */ if ((efx->reset_pending != RESET_TYPE_INVISIBLE) && @@ -2121,6 +2108,11 @@ static int __init efx_init_module(void) rc = -ENOMEM; goto err_refill; } + reset_workqueue = create_singlethread_workqueue("sfc_reset"); + if (!reset_workqueue) { + rc = -ENOMEM; + goto err_reset; + } rc = pci_register_driver(&efx_pci_driver); if (rc < 0) @@ -2129,6 +2121,8 @@ static int __init efx_init_module(void) return 0; err_pci: + destroy_workqueue(reset_workqueue); + err_reset: destroy_workqueue(refill_workqueue); err_refill: unregister_netdevice_notifier(&efx_netdev_notifier); @@ -2141,6 +2135,7 @@ static void __exit efx_exit_module(void) printk(KERN_INFO "Solarflare NET driver unloading\n"); pci_unregister_driver(&efx_pci_driver); + destroy_workqueue(reset_workqueue); destroy_workqueue(refill_workqueue); unregister_netdevice_notifier(&efx_netdev_notifier); diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index e596c9a6a4c4..f91060963475 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -635,7 +635,6 @@ union efx_multicast_hash { * @legacy_irq: IRQ number * @workqueue: Workqueue for port reconfigures and the HW monitor. * Work items do not hold and must not acquire RTNL. - * @reset_workqueue: Workqueue for resets. Work item will acquire RTNL. * @reset_work: Scheduled reset workitem * @monitor_work: Hardware monitor workitem * @membase_phys: Memory BAR value as physical address @@ -711,7 +710,6 @@ struct efx_nic { const struct efx_nic_type *type; int legacy_irq; struct workqueue_struct *workqueue; - struct workqueue_struct *reset_workqueue; struct work_struct reset_work; struct delayed_work monitor_work; resource_size_t membase_phys; |