38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
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diff --git a/src/netdev.c b/src/netdev.c
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index 73b0f9a..aef1bc2 100644
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--- a/src/netdev.c
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+++ b/src/netdev.c
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@@ -6724,19 +6724,12 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
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int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
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/* Jumbo frame support */
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- if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) &&
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+ if ((new_mtu > ETH_DATA_LEN) &&
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!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
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e_err("Jumbo Frames not supported.\n");
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return -EINVAL;
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}
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- /* Supported frame sizes */
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- if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) ||
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- (max_frame > adapter->max_hw_frame_size)) {
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- e_err("Unsupported MTU setting\n");
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- return -EINVAL;
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- }
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-
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/* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
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if ((adapter->hw.mac.type >= e1000_pch2lan) &&
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!(adapter->flags2 & FLAG2_CRC_STRIPPING) &&
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@@ -8262,6 +8255,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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#endif /* HAVE_NETDEV_VLAN_FEATURES */
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}
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+ /* MTU range: 68 - max_hw_frame_size */
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+ netdev->min_mtu = ETH_MIN_MTU;
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+ netdev->max_mtu = adapter->max_hw_frame_size -
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+ (VLAN_ETH_HLEN + ETH_FCS_LEN);
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+
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if (e1000e_enable_mng_pass_thru(&adapter->hw))
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adapter->flags |= FLAG_MNG_PT_ENABLED;
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