38 lines
1.4 KiB
Diff
38 lines
1.4 KiB
Diff
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diff --git a/src/ixgbe_main.c b/src/ixgbe_main.c
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index 83c6250..fe226cd 100644
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--- a/src/ixgbe_main.c
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+++ b/src/ixgbe_main.c
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@@ -6379,11 +6379,6 @@ static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter)
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static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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- int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
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-
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- /* MTU < 68 is an error and causes problems on some kernels */
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- if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
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- return -EINVAL;
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/*
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* For 82599EB we cannot allow legacy VFs to enable their receive
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@@ -6392,7 +6387,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
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*/
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if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
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(adapter->hw.mac.type == ixgbe_mac_82599EB) &&
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- (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
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+ (new_mtu > ETH_DATA_LEN))
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e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n");
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e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu);
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@@ -10134,6 +10129,11 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
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#ifdef IFF_SUPP_NOFCS
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netdev->priv_flags |= IFF_SUPP_NOFCS;
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#endif
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+
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+ /* MTU range: 68 - 9710 */
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+ netdev->min_mtu = ETH_MIN_MTU;
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+ netdev->max_mtu = IXGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
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+
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#if IS_ENABLED(CONFIG_DCB)
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if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE)
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netdev->dcbnl_ops = &dcbnl_ops;
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