diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 7017281ba2dc..8759d9236930 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -5974,19 +5974,12 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; /* Jumbo frame support */ - if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) && + if ((new_mtu > ETH_DATA_LEN) && !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { e_err("Jumbo Frames not supported.\n"); return -EINVAL; } - /* Supported frame sizes */ - if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) || - (max_frame > adapter->max_hw_frame_size)) { - e_err("Unsupported MTU setting\n"); - return -EINVAL; - } - /* Jumbo frame workaround on 82579 and newer requires CRC be stripped */ if ((adapter->hw.mac.type >= e1000_pch2lan) && !(adapter->flags2 & FLAG2_CRC_STRIPPING) && @@ -7187,6 +7180,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->vlan_features |= NETIF_F_HIGHDMA; } + /* MTU range: 68 - max_hw_frame_size */ + netdev->min_mtu = ETH_MIN_MTU; + netdev->max_mtu = adapter->max_hw_frame_size - + (VLAN_ETH_HLEN + ETH_FCS_LEN); + if (e1000e_enable_mng_pass_thru(&adapter->hw)) adapter->flags |= FLAG_MNG_PT_ENABLED; |