diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet.c')
| -rw-r--r-- | drivers/staging/octeon/ethernet.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index d02e3e31ed29..8130dfe89745 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -259,17 +259,6 @@ static int cvm_oct_common_change_mtu(struct net_device *dev, int new_mtu) #endif int mtu_overhead = ETH_HLEN + ETH_FCS_LEN + vlan_bytes; - /* - * Limit the MTU to make sure the ethernet packets are between - * 64 bytes and 65535 bytes. - */ - if ((new_mtu + mtu_overhead < VLAN_ETH_ZLEN) || - (new_mtu + mtu_overhead > OCTEON_MAX_MTU)) { - pr_err("MTU must be between %d and %d.\n", - VLAN_ETH_ZLEN - mtu_overhead, - OCTEON_MAX_MTU - mtu_overhead); - return -EINVAL; - } dev->mtu = new_mtu; if ((interface < 2) && @@ -457,7 +446,7 @@ int cvm_oct_common_init(struct net_device *dev) dev->ethtool_ops = &cvm_oct_ethtool_ops; cvm_oct_set_mac_filter(dev); - dev->netdev_ops->ndo_change_mtu(dev, dev->mtu); + dev_set_mtu(dev, dev->mtu); /* * Zero out stats for port so we won't mistakenly show @@ -685,6 +674,11 @@ static int cvm_oct_probe(struct platform_device *pdev) int fau = FAU_NUM_PACKET_BUFFERS_TO_FREE; int qos; struct device_node *pip; + int mtu_overhead = ETH_HLEN + ETH_FCS_LEN; + +#if IS_ENABLED(CONFIG_VLAN_8021Q) + mtu_overhead += VLAN_HLEN; +#endif octeon_mdiobus_force_mod_depencency(); @@ -783,6 +777,8 @@ static int cvm_oct_probe(struct platform_device *pdev) strcpy(dev->name, "pow%d"); for (qos = 0; qos < 16; qos++) skb_queue_head_init(&priv->tx_free_list[qos]); + dev->min_mtu = VLAN_ETH_ZLEN - mtu_overhead; + dev->max_mtu = OCTEON_MAX_MTU - mtu_overhead; if (register_netdev(dev) < 0) { pr_err("Failed to register ethernet device for POW\n"); @@ -836,6 +832,8 @@ static int cvm_oct_probe(struct platform_device *pdev) for (qos = 0; qos < cvmx_pko_get_num_queues(port); qos++) cvmx_fau_atomic_write32(priv->fau + qos * 4, 0); + dev->min_mtu = VLAN_ETH_ZLEN - mtu_overhead; + dev->max_mtu = OCTEON_MAX_MTU - mtu_overhead; switch (priv->imode) { /* These types don't support ports to IPD/PKO */ |