diff options
Diffstat (limited to 'drivers/net/ethernet/realtek/8139too.c')
| -rw-r--r-- | drivers/net/ethernet/realtek/8139too.c | 109 |
1 files changed, 97 insertions, 12 deletions
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c index a8779bedb3d9..df7fd8d083dc 100644 --- a/drivers/net/ethernet/realtek/8139too.c +++ b/drivers/net/ethernet/realtek/8139too.c @@ -565,6 +565,12 @@ struct rtl_extra_stats { unsigned long rx_lost_in_ring; }; +struct rtl8139_stats { + u64 packets; + u64 bytes; + struct u64_stats_sync syncp; +}; + struct rtl8139_private { void __iomem *mmio_addr; int drv_flags; @@ -575,11 +581,13 @@ struct rtl8139_private { unsigned char *rx_ring; unsigned int cur_rx; /* RX buf index of next pkt */ + struct rtl8139_stats rx_stats; dma_addr_t rx_ring_dma; unsigned int tx_flag; unsigned long cur_tx; unsigned long dirty_tx; + struct rtl8139_stats tx_stats; unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ unsigned char *tx_bufs; /* Tx bounce buffer region. */ dma_addr_t tx_bufs_dma; @@ -641,7 +649,9 @@ static int rtl8139_poll(struct napi_struct *napi, int budget); static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); static int rtl8139_close (struct net_device *dev); static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); -static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); +static struct rtnl_link_stats64 *rtl8139_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 + *stats); static void rtl8139_set_rx_mode (struct net_device *dev); static void __set_rx_mode (struct net_device *dev); static void rtl8139_hw_start (struct net_device *dev); @@ -754,10 +764,9 @@ static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) /* dev and priv zeroed in alloc_etherdev */ dev = alloc_etherdev (sizeof (*tp)); - if (dev == NULL) { - dev_err(&pdev->dev, "Unable to alloc new net device\n"); + if (dev == NULL) return ERR_PTR(-ENOMEM); - } + SET_NETDEV_DEV(dev, &pdev->dev); tp = netdev_priv(dev); @@ -908,10 +917,37 @@ err_out: return ERR_PTR(rc); } +static int rtl8139_set_features(struct net_device *dev, netdev_features_t features) +{ + struct rtl8139_private *tp = netdev_priv(dev); + unsigned long flags; + netdev_features_t changed = features ^ dev->features; + void __iomem *ioaddr = tp->mmio_addr; + + if (!(changed & (NETIF_F_RXALL))) + return 0; + + spin_lock_irqsave(&tp->lock, flags); + + if (changed & NETIF_F_RXALL) { + int rx_mode = tp->rx_config; + if (features & NETIF_F_RXALL) + rx_mode |= (AcceptErr | AcceptRunt); + else + rx_mode &= ~(AcceptErr | AcceptRunt); + tp->rx_config = rtl8139_rx_config | rx_mode; + RTL_W32_F(RxConfig, tp->rx_config); + } + + spin_unlock_irqrestore(&tp->lock, flags); + + return 0; +} + static const struct net_device_ops rtl8139_netdev_ops = { .ndo_open = rtl8139_open, .ndo_stop = rtl8139_close, - .ndo_get_stats = rtl8139_get_stats, + .ndo_get_stats64 = rtl8139_get_stats64, .ndo_change_mtu = eth_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = rtl8139_set_mac_address, @@ -922,6 +958,7 @@ static const struct net_device_ops rtl8139_netdev_ops = { #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = rtl8139_poll_controller, #endif + .ndo_set_features = rtl8139_set_features, }; static int __devinit rtl8139_init_one (struct pci_dev *pdev, @@ -995,6 +1032,9 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev, dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; dev->vlan_features = dev->features; + dev->hw_features |= NETIF_F_RXALL; + dev->hw_features |= NETIF_F_RXFCS; + dev->irq = pdev->irq; /* tp zeroed and aligned in alloc_etherdev */ @@ -1777,8 +1817,10 @@ static void rtl8139_tx_interrupt (struct net_device *dev, dev->stats.tx_fifo_errors++; } dev->stats.collisions += (txstatus >> 24) & 15; - dev->stats.tx_bytes += txstatus & 0x7ff; - dev->stats.tx_packets++; + u64_stats_update_begin(&tp->tx_stats.syncp); + tp->tx_stats.packets++; + tp->tx_stats.bytes += txstatus & 0x7ff; + u64_stats_update_end(&tp->tx_stats.syncp); } dirty_tx++; @@ -1941,7 +1983,10 @@ static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, /* read size+status of next frame from DMA ring buffer */ rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); rx_size = rx_status >> 16; - pkt_size = rx_size - 4; + if (likely(!(dev->features & NETIF_F_RXFCS))) + pkt_size = rx_size - 4; + else + pkt_size = rx_size; netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n", __func__, rx_status, rx_size, cur_rx); @@ -1979,11 +2024,30 @@ no_early_rx: if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || (rx_size < 8) || (!(rx_status & RxStatusOK)))) { + if ((dev->features & NETIF_F_RXALL) && + (rx_size <= (MAX_ETH_FRAME_SIZE + 4)) && + (rx_size >= 8) && + (!(rx_status & RxStatusOK))) { + /* Length is at least mostly OK, but pkt has + * error. I'm hoping we can handle some of these + * errors without resetting the chip. --Ben + */ + dev->stats.rx_errors++; + if (rx_status & RxCRCErr) { + dev->stats.rx_crc_errors++; + goto keep_pkt; + } + if (rx_status & RxRunt) { + dev->stats.rx_length_errors++; + goto keep_pkt; + } + } rtl8139_rx_err (rx_status, dev, tp, ioaddr); received = -1; goto out; } +keep_pkt: /* Malloc up new buffer, compatible with net-2e. */ /* Omit the four octet CRC from the length. */ @@ -1998,8 +2062,10 @@ no_early_rx: skb->protocol = eth_type_trans (skb, dev); - dev->stats.rx_bytes += pkt_size; - dev->stats.rx_packets++; + u64_stats_update_begin(&tp->rx_stats.syncp); + tp->rx_stats.packets++; + tp->rx_stats.bytes += pkt_size; + u64_stats_update_end(&tp->rx_stats.syncp); netif_receive_skb (skb); } else { @@ -2463,11 +2529,13 @@ static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) } -static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) +static struct rtnl_link_stats64 * +rtl8139_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct rtl8139_private *tp = netdev_priv(dev); void __iomem *ioaddr = tp->mmio_addr; unsigned long flags; + unsigned int start; if (netif_running(dev)) { spin_lock_irqsave (&tp->lock, flags); @@ -2476,7 +2544,21 @@ static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) spin_unlock_irqrestore (&tp->lock, flags); } - return &dev->stats; + netdev_stats_to_stats64(stats, &dev->stats); + + do { + start = u64_stats_fetch_begin_bh(&tp->rx_stats.syncp); + stats->rx_packets = tp->rx_stats.packets; + stats->rx_bytes = tp->rx_stats.bytes; + } while (u64_stats_fetch_retry_bh(&tp->rx_stats.syncp, start)); + + do { + start = u64_stats_fetch_begin_bh(&tp->tx_stats.syncp); + stats->tx_packets = tp->tx_stats.packets; + stats->tx_bytes = tp->tx_stats.bytes; + } while (u64_stats_fetch_retry_bh(&tp->tx_stats.syncp, start)); + + return stats; } /* Set or clear the multicast filter for this adaptor. @@ -2516,6 +2598,9 @@ static void __set_rx_mode (struct net_device *dev) } } + if (dev->features & NETIF_F_RXALL) + rx_mode |= (AcceptErr | AcceptRunt); + /* We can safely update without stopping the chip. */ tmp = rtl8139_rx_config | rx_mode; if (tp->rx_config != tmp) { |