diff options
| author | Andrew Rybchenko <Andrew.Rybchenko@oktetlabs.ru> | 2016-06-15 17:43:20 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-15 22:26:25 -0700 |
| commit | ebfcd0fd90b88088e4d3841c4be9a8c5753d3993 (patch) | |
| tree | e263cf9a5409828c4677bf7377e9086971fb34b7 | |
| parent | b071c3a222db465b32bb6f04ba07264a1556a17c (diff) | |
| download | linux-ebfcd0fd90b88088e4d3841c4be9a8c5753d3993.tar.bz2 | |
sfc: Add efx_nic member with fixed netdev features
It allows to change set of fixed features on datapath reset.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 18 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 3 |
2 files changed, 17 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 097f363f1630..2eecd2873c79 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -600,6 +600,7 @@ fail: */ static void efx_start_datapath(struct efx_nic *efx) { + netdev_features_t old_features = efx->net_dev->features; bool old_rx_scatter = efx->rx_scatter; struct efx_tx_queue *tx_queue; struct efx_rx_queue *rx_queue; @@ -644,6 +645,15 @@ static void efx_start_datapath(struct efx_nic *efx) efx->rx_dma_len, efx->rx_page_buf_step, efx->rx_bufs_per_page, efx->rx_pages_per_batch); + /* Restore previously fixed features in hw_features and remove + * features which are fixed now + */ + efx->net_dev->hw_features |= efx->net_dev->features; + efx->net_dev->hw_features &= ~efx->fixed_features; + efx->net_dev->features |= efx->fixed_features; + if (efx->net_dev->features != old_features) + netdev_features_change(efx->net_dev); + /* RX filters may also have scatter-enabled flags */ if (efx->rx_scatter != old_rx_scatter) efx->type->filter_update_rx_scatter(efx); @@ -3147,17 +3157,17 @@ static int efx_pci_probe(struct pci_dev *pci_dev, return -ENOMEM; efx = netdev_priv(net_dev); efx->type = (const struct efx_nic_type *) entry->driver_data; + efx->fixed_features |= NETIF_F_HIGHDMA; net_dev->features |= (efx->type->offload_features | NETIF_F_SG | - NETIF_F_HIGHDMA | NETIF_F_TSO | - NETIF_F_RXCSUM); + NETIF_F_TSO | NETIF_F_RXCSUM); if (efx->type->offload_features & (NETIF_F_IPV6_CSUM | NETIF_F_HW_CSUM)) net_dev->features |= NETIF_F_TSO6; /* Mask for features that also apply to VLAN devices */ net_dev->vlan_features |= (NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_ALL_TSO | NETIF_F_RXCSUM); - /* All offloads can be toggled */ - net_dev->hw_features = net_dev->features & ~NETIF_F_HIGHDMA; + net_dev->features |= efx->fixed_features; + net_dev->hw_features = net_dev->features & ~efx->fixed_features; pci_set_drvdata(pci_dev, efx); SET_NETDEV_DEV(net_dev, &pci_dev->dev); rc = efx_init_struct(efx, pci_dev, net_dev); diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 77cd23cda3f3..26abb5c47fc6 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -868,6 +868,7 @@ struct vfdi_status; * be held to modify it. * @port_initialized: Port initialized? * @net_dev: Operating system network device. Consider holding the rtnl lock + * @fixed_features: Features which cannot be turned off * @stats_buffer: DMA buffer for statistics * @phy_type: PHY type * @phy_op: PHY interface @@ -1007,6 +1008,8 @@ struct efx_nic { bool port_initialized; struct net_device *net_dev; + netdev_features_t fixed_features; + struct efx_buffer stats_buffer; u64 rx_nodesc_drops_total; u64 rx_nodesc_drops_while_down; |