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path: root/drivers/net/ethernet/pasemi/pasemi_mac.c
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Diffstat (limited to 'drivers/net/ethernet/pasemi/pasemi_mac.c')
-rw-r--r--drivers/net/ethernet/pasemi/pasemi_mac.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index 2f4a837f0d6a..badfa1d562a4 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -53,7 +53,7 @@
* - Multiqueue RX/TX
*/
-#define PE_MIN_MTU 64
+#define PE_MIN_MTU (ETH_ZLEN + ETH_HLEN)
#define PE_MAX_MTU 9000
#define PE_DEF_MTU ETH_DATA_LEN
@@ -1611,9 +1611,6 @@ static int pasemi_mac_change_mtu(struct net_device *dev, int new_mtu)
int running;
int ret = 0;
- if (new_mtu < PE_MIN_MTU || new_mtu > PE_MAX_MTU)
- return -EINVAL;
-
running = netif_running(dev);
if (running) {
@@ -1635,7 +1632,7 @@ static int pasemi_mac_change_mtu(struct net_device *dev, int new_mtu)
}
/* Setup checksum channels if large MTU and none already allocated */
- if (new_mtu > 1500 && !mac->num_cs) {
+ if (new_mtu > PE_DEF_MTU && !mac->num_cs) {
pasemi_mac_setup_csrings(mac);
if (!mac->num_cs) {
ret = -ENOMEM;
@@ -1757,6 +1754,11 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
dev->netdev_ops = &pasemi_netdev_ops;
dev->mtu = PE_DEF_MTU;
+
+ /* MTU range: 64 - 9000 */
+ dev->min_mtu = PE_MIN_MTU;
+ dev->max_mtu = PE_MAX_MTU;
+
/* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
mac->bufsz = dev->mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128;