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@@ -1585,8 +1585,8 @@ rtl8169_hw_start(struct net_device *dev)
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RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
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RTL_W8(EarlyTxThres, EarlyTxThld);
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- /* For gigabit rtl8169, MTU + header + CRC + VLAN */
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- RTL_W16(RxMaxSize, tp->rx_buf_sz);
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+ /* Low hurts. Let's disable the filtering. */
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+ RTL_W16(RxMaxSize, 16383);
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/* Set Rx Config register */
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i = rtl8169_rx_config |
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@@ -2127,6 +2127,11 @@ rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
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}
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}
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+static inline int rtl8169_fragmented_frame(u32 status)
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+{
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+ return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
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+}
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+
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static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
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{
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u32 opts1 = le32_to_cpu(desc->opts1);
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@@ -2177,27 +2182,41 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
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while (rx_left > 0) {
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unsigned int entry = cur_rx % NUM_RX_DESC;
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+ struct RxDesc *desc = tp->RxDescArray + entry;
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u32 status;
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rmb();
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- status = le32_to_cpu(tp->RxDescArray[entry].opts1);
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+ status = le32_to_cpu(desc->opts1);
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if (status & DescOwn)
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break;
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if (status & RxRES) {
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- printk(KERN_INFO "%s: Rx ERROR!!!\n", dev->name);
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+ printk(KERN_INFO "%s: Rx ERROR. status = %08x\n",
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+ dev->name, status);
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tp->stats.rx_errors++;
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if (status & (RxRWT | RxRUNT))
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tp->stats.rx_length_errors++;
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if (status & RxCRC)
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tp->stats.rx_crc_errors++;
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+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
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} else {
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- struct RxDesc *desc = tp->RxDescArray + entry;
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struct sk_buff *skb = tp->Rx_skbuff[entry];
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int pkt_size = (status & 0x00001FFF) - 4;
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void (*pci_action)(struct pci_dev *, dma_addr_t,
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size_t, int) = pci_dma_sync_single_for_device;
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+ /*
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+ * The driver does not support incoming fragmented
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+ * frames. They are seen as a symptom of over-mtu
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+ * sized frames.
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+ */
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+ if (unlikely(rtl8169_fragmented_frame(status))) {
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+ tp->stats.rx_dropped++;
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+ tp->stats.rx_length_errors++;
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+ rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
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+ goto move_on;
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+ }
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+
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rtl8169_rx_csum(skb, desc);
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pci_dma_sync_single_for_cpu(tp->pci_dev,
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@@ -2224,7 +2243,7 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
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tp->stats.rx_bytes += pkt_size;
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tp->stats.rx_packets++;
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}
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-
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+move_on:
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cur_rx++;
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rx_left--;
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}
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