diff options
Diffstat (limited to 'drivers/net/dm9000.c')
| -rw-r--r-- | drivers/net/dm9000.c | 57 |
1 files changed, 13 insertions, 44 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index b7af5bab9937..f7bdebbcb908 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -131,8 +131,6 @@ typedef struct board_info { u32 msg_enable; u32 wake_state; - int rx_csum; - int can_csum; int ip_summed; } board_info_t; @@ -470,47 +468,20 @@ static int dm9000_nway_reset(struct net_device *dev) return mii_nway_restart(&dm->mii); } -static uint32_t dm9000_get_rx_csum(struct net_device *dev) +static int dm9000_set_features(struct net_device *dev, u32 features) { board_info_t *dm = to_dm9000_board(dev); - return dm->rx_csum; -} - -static int dm9000_set_rx_csum_unlocked(struct net_device *dev, uint32_t data) -{ - board_info_t *dm = to_dm9000_board(dev); - - if (dm->can_csum) { - dm->rx_csum = data; - iow(dm, DM9000_RCSR, dm->rx_csum ? RCSR_CSUM : 0); + u32 changed = dev->features ^ features; + unsigned long flags; + if (!(changed & NETIF_F_RXCSUM)) return 0; - } - - return -EOPNOTSUPP; -} - -static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data) -{ - board_info_t *dm = to_dm9000_board(dev); - unsigned long flags; - int ret; spin_lock_irqsave(&dm->lock, flags); - ret = dm9000_set_rx_csum_unlocked(dev, data); + iow(dm, DM9000_RCSR, (features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0); spin_unlock_irqrestore(&dm->lock, flags); - return ret; -} - -static int dm9000_set_tx_csum(struct net_device *dev, uint32_t data) -{ - board_info_t *dm = to_dm9000_board(dev); - int ret = -EOPNOTSUPP; - - if (dm->can_csum) - ret = ethtool_op_set_tx_csum(dev, data); - return ret; + return 0; } static u32 dm9000_get_link(struct net_device *dev) @@ -643,10 +614,6 @@ static const struct ethtool_ops dm9000_ethtool_ops = { .get_eeprom_len = dm9000_get_eeprom_len, .get_eeprom = dm9000_get_eeprom, .set_eeprom = dm9000_set_eeprom, - .get_rx_csum = dm9000_get_rx_csum, - .set_rx_csum = dm9000_set_rx_csum, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = dm9000_set_tx_csum, }; static void dm9000_show_carrier(board_info_t *db, @@ -800,7 +767,9 @@ dm9000_init_dm9000(struct net_device *dev) db->io_mode = ior(db, DM9000_ISR) >> 6; /* ISR bit7:6 keeps I/O mode */ /* Checksum mode */ - dm9000_set_rx_csum_unlocked(dev, db->rx_csum); + if (dev->hw_features & NETIF_F_RXCSUM) + iow(dm, DM9000_RCSR, + (dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0); iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */ @@ -1049,7 +1018,7 @@ dm9000_rx(struct net_device *dev) /* Pass to upper layer */ skb->protocol = eth_type_trans(skb, dev); - if (db->rx_csum) { + if (dev->features & NETIF_F_RXCSUM) { if ((((rxbyte & 0x1c) << 3) & rxbyte) == 0) skb->ip_summed = CHECKSUM_UNNECESSARY; else @@ -1358,6 +1327,7 @@ static const struct net_device_ops dm9000_netdev_ops = { .ndo_set_multicast_list = dm9000_hash_table, .ndo_do_ioctl = dm9000_ioctl, .ndo_change_mtu = eth_change_mtu, + .ndo_set_features = dm9000_set_features, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, #ifdef CONFIG_NET_POLL_CONTROLLER @@ -1551,9 +1521,8 @@ dm9000_probe(struct platform_device *pdev) /* dm9000a/b are capable of hardware checksum offload */ if (db->type == TYPE_DM9000A || db->type == TYPE_DM9000B) { - db->can_csum = 1; - db->rx_csum = 1; - ndev->features |= NETIF_F_IP_CSUM; + ndev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM; + ndev->features |= ndev->hw_features; } /* from this point we assume that we have found a DM9000 */ |