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path: root/drivers/net/e1000
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Diffstat (limited to 'drivers/net/e1000')
-rw-r--r--drivers/net/e1000/e1000.h3
-rw-r--r--drivers/net/e1000/e1000_main.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index f411bbb44f8..d304297c496 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -110,6 +110,9 @@ struct e1000_adapter;
#define E1000_MIN_RXD 80
#define E1000_MAX_82544_RXD 4096
+/* this is the size past which hardware will drop packets when setting LPE=0 */
+#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
+
/* Supported Rx Buffer Sizes */
#define E1000_RXBUFFER_128 128 /* Used for packet split */
#define E1000_RXBUFFER_256 256 /* Used for packet split */
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 0074a3a506a..154acb2cde9 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1068,7 +1068,7 @@ e1000_sw_init(struct e1000_adapter *adapter)
pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
- adapter->rx_buffer_len = MAXIMUM_ETHERNET_FRAME_SIZE;
+ adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
adapter->rx_ps_bsize0 = E1000_RXBUFFER_128;
hw->max_frame_size = netdev->mtu +
ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
@@ -3148,7 +3148,6 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
adapter->rx_buffer_len = E1000_RXBUFFER_16384;
/* adjust allocation if LPE protects us, and we aren't using SBP */
-#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
if (!adapter->hw.tbi_compatibility_on &&
((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) ||
(max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))