diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/efx_common.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx_common.c | 86 |
1 files changed, 67 insertions, 19 deletions
diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c index fe74c66c8ec6..9cd7c1550c08 100644 --- a/drivers/net/ethernet/sfc/efx_common.c +++ b/drivers/net/ethernet/sfc/efx_common.c @@ -141,9 +141,11 @@ void efx_destroy_reset_workqueue(void) */ void efx_mac_reconfigure(struct efx_nic *efx) { - down_read(&efx->filter_sem); - efx->type->reconfigure_mac(efx); - up_read(&efx->filter_sem); + if (efx->type->reconfigure_mac) { + down_read(&efx->filter_sem); + efx->type->reconfigure_mac(efx); + up_read(&efx->filter_sem); + } } /* Asynchronous work item for changing MAC promiscuity and multicast @@ -296,7 +298,8 @@ static void efx_start_datapath(struct efx_nic *efx) netdev_features_change(efx->net_dev); /* RX filters may also have scatter-enabled flags */ - if (efx->rx_scatter != old_rx_scatter) + if ((efx->rx_scatter != old_rx_scatter) && + efx->type->filter_update_rx_scatter) efx->type->filter_update_rx_scatter(efx); /* We must keep at least one descriptor in a TX ring empty. @@ -405,11 +408,13 @@ void efx_start_all(struct efx_nic *efx) efx_link_status_changed(efx); mutex_unlock(&efx->mac_lock); - efx->type->start_stats(efx); - efx->type->pull_stats(efx); - spin_lock_bh(&efx->stats_lock); - efx->type->update_stats(efx, NULL, NULL); - spin_unlock_bh(&efx->stats_lock); + if (efx->type->start_stats) { + efx->type->start_stats(efx); + efx->type->pull_stats(efx); + spin_lock_bh(&efx->stats_lock); + efx->type->update_stats(efx, NULL, NULL); + spin_unlock_bh(&efx->stats_lock); + } } /* Quiesce the hardware and software data path, and regular activity @@ -425,14 +430,17 @@ void efx_stop_all(struct efx_nic *efx) if (!efx->port_enabled) return; - /* update stats before we go down so we can accurately count - * rx_nodesc_drops - */ - efx->type->pull_stats(efx); - spin_lock_bh(&efx->stats_lock); - efx->type->update_stats(efx, NULL, NULL); - spin_unlock_bh(&efx->stats_lock); - efx->type->stop_stats(efx); + if (efx->type->update_stats) { + /* update stats before we go down so we can accurately count + * rx_nodesc_drops + */ + efx->type->pull_stats(efx); + spin_lock_bh(&efx->stats_lock); + efx->type->update_stats(efx, NULL, NULL); + spin_unlock_bh(&efx->stats_lock); + efx->type->stop_stats(efx); + } + efx_stop_port(efx); /* Stop the kernel transmit interface. This is only valid if @@ -456,7 +464,7 @@ void efx_stop_all(struct efx_nic *efx) int __efx_reconfigure_port(struct efx_nic *efx) { enum efx_phy_mode phy_mode; - int rc; + int rc = 0; WARN_ON(!mutex_is_locked(&efx->mac_lock)); @@ -467,7 +475,8 @@ int __efx_reconfigure_port(struct efx_nic *efx) else efx->phy_mode &= ~PHY_MODE_TX_DISABLED; - rc = efx->type->reconfigure_port(efx); + if (efx->type->reconfigure_port) + rc = efx->type->reconfigure_port(efx); if (rc) efx->phy_mode = phy_mode; @@ -997,3 +1006,42 @@ void efx_fini_io(struct efx_nic *efx, int bar) if (!pci_vfs_assigned(efx->pci_dev)) pci_disable_device(efx->pci_dev); } + +#ifdef CONFIG_SFC_MCDI_LOGGING +static ssize_t show_mcdi_log(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct efx_nic *efx = dev_get_drvdata(dev); + struct efx_mcdi_iface *mcdi = efx_mcdi(efx); + + return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled); +} + +static ssize_t set_mcdi_log(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct efx_nic *efx = dev_get_drvdata(dev); + struct efx_mcdi_iface *mcdi = efx_mcdi(efx); + bool enable = count > 0 && *buf != '0'; + + mcdi->logging_enabled = enable; + return count; +} + +static DEVICE_ATTR(mcdi_logging, 0644, show_mcdi_log, set_mcdi_log); + +void efx_init_mcdi_logging(struct efx_nic *efx) +{ + int rc = device_create_file(&efx->pci_dev->dev, &dev_attr_mcdi_logging); + + if (rc) { + netif_warn(efx, drv, efx->net_dev, + "failed to init net dev attributes\n"); + } +} + +void efx_fini_mcdi_logging(struct efx_nic *efx) +{ + device_remove_file(&efx->pci_dev->dev, &dev_attr_mcdi_logging); +} +#endif |