diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2009-06-02 11:28:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-03 02:46:33 -0700 |
| commit | 2adc55c959940fc680074392eddbd5585a76f3d9 (patch) | |
| tree | bf5050070f1f0ef3dd6d1f951d0a50c7ac8aa161 /drivers/net/e1000e/netdev.c | |
| parent | 3ec2a2b80f3eb53851fe4cef9e65b5d33376ef89 (diff) | |
e1000e: specify max supported frame size in adapter struct
By putting the maximum frame size supported by the hardware into the
adapter structure, the change_mtu entry point function can be cleaned
up of checks for all the different max frame sizes supported by
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index b7a46c513783..4072fbb6493d 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4212,27 +4212,17 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) struct e1000_adapter *adapter = netdev_priv(netdev); int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; - if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) || - (max_frame > MAX_JUMBO_FRAME_SIZE)) { - e_err("Invalid MTU setting\n"); + /* Jumbo frame support */ + if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) && + !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { + e_err("Jumbo Frames not supported.\n"); return -EINVAL; } - /* Jumbo frame size limits */ - if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) { - if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { - e_err("Jumbo Frames not supported.\n"); - return -EINVAL; - } - if (adapter->hw.phy.type == e1000_phy_ife) { - e_err("Jumbo Frames not supported.\n"); - return -EINVAL; - } - } - -#define MAX_STD_JUMBO_FRAME_SIZE 9234 - if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) { - e_err("MTU > 9216 not supported.\n"); + /* Supported frame sizes */ + if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) || + (max_frame > adapter->max_hw_frame_size)) { + e_err("Unsupported MTU setting\n"); return -EINVAL; } @@ -4848,6 +4838,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, adapter->flags2 = ei->flags2; adapter->hw.adapter = adapter; adapter->hw.mac.type = ei->mac; + adapter->max_hw_frame_size = ei->max_hw_frame_size; adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1; mmio_start = pci_resource_start(pdev, 0); |