linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / drivers / net / r8169.c

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 43641dd..78c532d 100644 (file)
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -113,11 +113,11 @@ static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
 static int num_media = 0;
 
 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static const int max_interrupt_work = 20;
+static int max_interrupt_work = 20;
 
 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
    The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static const int multicast_filter_limit = 32;
+static int multicast_filter_limit = 32;
 
 /* MAC address length */
 #define MAC_ADDR_LEN   6
@@ -194,6 +194,7 @@ MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 
 static int rx_copybreak = 200;
 static int use_dac;
+static int ignore_parity_err;
 static struct {
        u32 msg_enable;
 } debug = { -1 };
@@ -256,10 +257,11 @@ enum RTL8169_register_content {
        RxOK = 0x01,
 
        /* RxStatusDesc */
-       RxRES = 0x00200000,
-       RxCRC = 0x00080000,
-       RxRUNT = 0x00100000,
-       RxRWT = 0x00400000,
+       RxFOVF  = (1 << 23),
+       RxRWT   = (1 << 22),
+       RxRES   = (1 << 21),
+       RxRUNT  = (1 << 20),
+       RxCRC   = (1 << 19),
 
        /* ChipCmdBits */
        CmdReset = 0x10,
@@ -460,6 +462,8 @@ module_param(use_dac, int, 0);
 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
 module_param_named(debug, debug.msg_enable, int, 0);
 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
+module_param_named(ignore_parity_err, ignore_parity_err, bool, 0);
+MODULE_PARM_DESC(ignore_parity_err, "Ignore PCI parity error as target. Default: false");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(RTL8169_VERSION);
 
@@ -2171,7 +2175,7 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
 {
        if (dev->features & NETIF_F_TSO) {
-               u32 mss = skb_shinfo(skb)->gso_size;
+               u32 mss = skb_shinfo(skb)->tso_size;
 
                if (mss)
                        return LargeSend | ((mss & MSSMask) << MSSShift);
@@ -2288,12 +2292,17 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
        /*
         * The recovery sequence below admits a very elaborated explanation:
         * - it seems to work;
-        * - I did not see what else could be done.
+        * - I did not see what else could be done;
+        * - it makes iop3xx happy.
         *
         * Feel free to adjust to your needs.
         */
-       pci_write_config_word(pdev, PCI_COMMAND,
-                             pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
+       if (ignore_parity_err)
+               pci_cmd &= ~PCI_COMMAND_PARITY;
+       else
+               pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
+
+       pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
 
        pci_write_config_word(pdev, PCI_STATUS,
                pci_status & (PCI_STATUS_DETECTED_PARITY |
@@ -2307,10 +2316,11 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
                tp->cp_cmd &= ~PCIDAC;
                RTL_W16(CPlusCmd, tp->cp_cmd);
                dev->features &= ~NETIF_F_HIGHDMA;
-               rtl8169_schedule_work(dev, rtl8169_reinit_task);
        }
 
        rtl8169_hw_reset(ioaddr);
+
+       rtl8169_schedule_work(dev, rtl8169_reinit_task);
 }
 
 static void
@@ -2435,6 +2445,10 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
                                tp->stats.rx_length_errors++;
                        if (status & RxCRC)
                                tp->stats.rx_crc_errors++;
+                       if (status & RxFOVF) {
+                               rtl8169_schedule_work(dev, rtl8169_reset_task);
+                               tp->stats.rx_fifo_errors++;
+                       }
                        rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
                } else {
                        struct sk_buff *skb = tp->Rx_skbuff[entry];
@@ -2614,6 +2628,7 @@ static void rtl8169_down(struct net_device *dev)
        struct rtl8169_private *tp = netdev_priv(dev);
        void __iomem *ioaddr = tp->mmio_addr;
        unsigned int poll_locked = 0;
+       unsigned int intrmask;
 
        rtl8169_delete_timer(dev);
 
@@ -2652,8 +2667,11 @@ core_down:
         * 2) dev->change_mtu
         *    -> rtl8169_poll can not be issued again and re-enable the
         *       interruptions. Let's simply issue the IRQ down sequence again.
+        *
+        * No loop if hotpluged or major error (0xffff).
         */
-       if (RTL_R16(IntrMask))
+       intrmask = RTL_R16(IntrMask);
+       if (intrmask && (intrmask != 0xffff))
                goto core_down;
 
        rtl8169_tx_clear(tp);