diff options
Diffstat (limited to 'drivers/net/ethernet/realtek/8139too.c')
| -rw-r--r-- | drivers/net/ethernet/realtek/8139too.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c index 007b38cce69a..6d0b9dfac313 100644 --- a/drivers/net/ethernet/realtek/8139too.c +++ b/drivers/net/ethernet/realtek/8139too.c @@ -112,6 +112,7 @@ #include <linux/io.h> #include <linux/uaccess.h> #include <linux/gfp.h> +#include <linux/if_vlan.h> #include <asm/irq.h> #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION @@ -182,10 +183,13 @@ static int debug = -1; /* Number of Tx descriptor registers. */ #define NUM_TX_DESC 4 -/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ -#define MAX_ETH_FRAME_SIZE 1536 +/* max supported ethernet frame size -- must be at least (dev->mtu+18+4).*/ +#define MAX_ETH_FRAME_SIZE 1792 -/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ +/* max supported payload size */ +#define MAX_ETH_DATA_SIZE (MAX_ETH_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN) + +/* Size of the Tx bounce buffers -- must be at least (dev->mtu+18+4). */ #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) @@ -920,11 +924,19 @@ static int rtl8139_set_features(struct net_device *dev, netdev_features_t featur return 0; } +static int rtl8139_change_mtu(struct net_device *dev, int new_mtu) +{ + if (new_mtu < 68 || new_mtu > MAX_ETH_DATA_SIZE) + return -EINVAL; + dev->mtu = new_mtu; + return 0; +} + static const struct net_device_ops rtl8139_netdev_ops = { .ndo_open = rtl8139_open, .ndo_stop = rtl8139_close, .ndo_get_stats64 = rtl8139_get_stats64, - .ndo_change_mtu = eth_change_mtu, + .ndo_change_mtu = rtl8139_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = rtl8139_set_mac_address, .ndo_start_xmit = rtl8139_start_xmit, @@ -2025,7 +2037,7 @@ keep_pkt: /* Malloc up new buffer, compatible with net-2e. */ /* Omit the four octet CRC from the length. */ - skb = netdev_alloc_skb_ip_align(dev, pkt_size); + skb = napi_alloc_skb(&tp->napi, pkt_size); if (likely(skb)) { #if RX_BUF_IDX == 3 wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |