48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
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diff --git a/src/e1000_defines.h b/src/e1000_defines.h
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index 6de3988..d58e12f 100644
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--- a/src/e1000_defines.h
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+++ b/src/e1000_defines.h
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@@ -423,7 +423,8 @@
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#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */
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#define ETHERNET_FCS_SIZE 4
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-#define MAX_JUMBO_FRAME_SIZE 0x3F00
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+#define MAX_JUMBO_FRAME_SIZE 0x2600
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+#define MAX_STD_JUMBO_FRAME_SIZE 9216
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/* The datasheet maximum supported RX size is 9.5KB (9728 bytes) */
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#define MAX_RX_JUMBO_FRAME_SIZE 0x2600
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#define E1000_TX_PTR_GAP 0x1F
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diff --git a/src/igb_main.c b/src/igb_main.c
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index 2dff0f4..bbfe87e 100644
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--- a/src/igb_main.c
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+++ b/src/igb_main.c
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@@ -2852,6 +2852,10 @@ static int igb_probe(struct pci_dev *pdev,
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if (pci_using_dac)
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netdev->features |= NETIF_F_HIGHDMA;
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+ /* MTU range: 68 - 9216 */
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+ netdev->min_mtu = ETH_MIN_MTU;
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+ netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE;
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+
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adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
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#ifdef DEBUG
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if (adapter->dmac != IGB_DMAC_DISABLE)
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@@ -5832,17 +5836,6 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
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struct pci_dev *pdev = adapter->pdev;
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int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
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- if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) {
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- dev_err(pci_dev_to_dev(pdev), "Invalid MTU setting\n");
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- return -EINVAL;
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- }
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-
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-#define MAX_STD_JUMBO_FRAME_SIZE 9238
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- if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
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- dev_err(pci_dev_to_dev(pdev), "MTU > 9216 not supported.\n");
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- return -EINVAL;
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- }
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-
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/* adjust max frame to be at least the size of a standard frame */
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if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN))
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max_frame = ETH_FRAME_LEN + ETH_FCS_LEN;
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