Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
[safe/jmp/linux-2.6] / drivers / net / r8169.c
index 5dba9fa..dbb1f5a 100644 (file)
@@ -168,7 +168,7 @@ static void rtl_hw_start_8169(struct net_device *);
 static void rtl_hw_start_8168(struct net_device *);
 static void rtl_hw_start_8101(struct net_device *);
 
-static struct pci_device_id rtl8169_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8129), 0, 0, RTL_CFG_0 },
        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8136), 0, 0, RTL_CFG_2 },
        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8167), 0, 0, RTL_CFG_0 },
@@ -186,7 +186,12 @@ static struct pci_device_id rtl8169_pci_tbl[] = {
 
 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 
-static int rx_copybreak = 200;
+/*
+ * we set our copybreak very high so that we don't have
+ * to allocate 16k frames all the time (see note in
+ * rtl8169_open()
+ */
+static int rx_copybreak = 16383;
 static int use_dac;
 static struct {
        u32 msg_enable;
@@ -744,12 +749,10 @@ static void rtl8169_check_link_status(struct net_device *dev,
        spin_lock_irqsave(&tp->lock, flags);
        if (tp->link_ok(ioaddr)) {
                netif_carrier_on(dev);
-               if (netif_msg_ifup(tp))
-                       printk(KERN_INFO PFX "%s: link up\n", dev->name);
+               netif_info(tp, ifup, dev, "link up\n");
        } else {
-               if (netif_msg_ifdown(tp))
-                       printk(KERN_INFO PFX "%s: link down\n", dev->name);
                netif_carrier_off(dev);
+               netif_info(tp, ifdown, dev, "link down\n");
        }
        spin_unlock_irqrestore(&tp->lock, flags);
 }
@@ -862,11 +865,8 @@ static int rtl8169_set_speed_tbi(struct net_device *dev,
        } else if (autoneg == AUTONEG_ENABLE)
                RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
        else {
-               if (netif_msg_link(tp)) {
-                       printk(KERN_WARNING "%s: "
-                              "incorrect speed setting refused in TBI mode\n",
-                              dev->name);
-               }
+               netif_warn(tp, link, dev,
+                          "incorrect speed setting refused in TBI mode\n");
                ret = -EOPNOTSUPP;
        }
 
@@ -901,9 +901,9 @@ static int rtl8169_set_speed_xmii(struct net_device *dev,
                    (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
                    (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
                        giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
-               } else if (netif_msg_link(tp)) {
-                       printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
-                              dev->name);
+               } else {
+                       netif_info(tp, link, dev,
+                                  "PHY does not support 1000Mbps\n");
                }
 
                bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
@@ -2705,8 +2705,7 @@ static void rtl8169_phy_timer(unsigned long __opaque)
        if (tp->link_ok(ioaddr))
                goto out_unlock;
 
-       if (netif_msg_link(tp))
-               printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);
+       netif_warn(tp, link, dev, "PHY reset until link up\n");
 
        tp->phy_reset_enable(ioaddr);
 
@@ -2776,8 +2775,7 @@ static void rtl8169_phy_reset(struct net_device *dev,
                        return;
                msleep(1);
        }
-       if (netif_msg_link(tp))
-               printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
+       netif_err(tp, link, dev, "PHY reset failed\n");
 }
 
 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
@@ -2811,8 +2809,8 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
         */
        rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
 
-       if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
-               printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
+       if (RTL_R8(PHYstatus) & TBI_Enable)
+               netif_info(tp, link, dev, "TBI auto-negotiating\n");
 }
 
 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
@@ -2827,8 +2825,8 @@ static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
        spin_lock_irq(&tp->lock);
 
        RTL_W8(Cfg9346, Cfg9346_Unlock);
-       RTL_W32(MAC0, low);
        RTL_W32(MAC4, high);
+       RTL_W32(MAC0, low);
        RTL_W8(Cfg9346, Cfg9346_Lock);
 
        spin_unlock_irq(&tp->lock);
@@ -3012,8 +3010,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        /* enable device (incl. PCI PM wakeup and hotplug setup) */
        rc = pci_enable_device(pdev);
        if (rc < 0) {
-               if (netif_msg_probe(tp))
-                       dev_err(&pdev->dev, "enable failure\n");
+               netif_err(tp, probe, dev, "enable failure\n");
                goto err_out_free_dev_1;
        }
 
@@ -3023,29 +3020,24 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        /* make sure PCI base addr 1 is MMIO */
        if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
-               if (netif_msg_probe(tp)) {
-                       dev_err(&pdev->dev,
-                               "region #%d not an MMIO resource, aborting\n",
-                               region);
-               }
+               netif_err(tp, probe, dev,
+                         "region #%d not an MMIO resource, aborting\n",
+                         region);
                rc = -ENODEV;
                goto err_out_mwi_3;
        }
 
        /* check for weird/broken PCI region reporting */
        if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
-               if (netif_msg_probe(tp)) {
-                       dev_err(&pdev->dev,
-                               "Invalid PCI region size(s), aborting\n");
-               }
+               netif_err(tp, probe, dev,
+                         "Invalid PCI region size(s), aborting\n");
                rc = -ENODEV;
                goto err_out_mwi_3;
        }
 
        rc = pci_request_regions(pdev, MODULENAME);
        if (rc < 0) {
-               if (netif_msg_probe(tp))
-                       dev_err(&pdev->dev, "could not request regions.\n");
+               netif_err(tp, probe, dev, "could not request regions\n");
                goto err_out_mwi_3;
        }
 
@@ -3058,10 +3050,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        } else {
                rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
                if (rc < 0) {
-                       if (netif_msg_probe(tp)) {
-                               dev_err(&pdev->dev,
-                                       "DMA configuration failed.\n");
-                       }
+                       netif_err(tp, probe, dev, "DMA configuration failed\n");
                        goto err_out_free_res_4;
                }
        }
@@ -3069,15 +3058,14 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        /* ioremap MMIO region */
        ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
        if (!ioaddr) {
-               if (netif_msg_probe(tp))
-                       dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+               netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
                rc = -EIO;
                goto err_out_free_res_4;
        }
 
        tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
-       if (!tp->pcie_cap && netif_msg_probe(tp))
-               dev_info(&pdev->dev, "no PCI Express capability\n");
+       if (!tp->pcie_cap)
+               netif_info(tp, probe, dev, "no PCI Express capability\n");
 
        RTL_W16(IntrMask, 0x0000);
 
@@ -3100,10 +3088,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        /* Use appropriate default if unknown */
        if (tp->mac_version == RTL_GIGA_MAC_NONE) {
-               if (netif_msg_probe(tp)) {
-                       dev_notice(&pdev->dev,
-                                  "unknown MAC, using family default\n");
-               }
+               netif_notice(tp, probe, dev,
+                            "unknown MAC, using family default\n");
                tp->mac_version = cfg->default_ver;
        }
 
@@ -3185,19 +3171,10 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        pci_set_drvdata(pdev, dev);
 
-       if (netif_msg_probe(tp)) {
-               u32 xid = RTL_R32(TxConfig) & 0x9cf0f8ff;
-
-               printk(KERN_INFO "%s: %s at 0x%lx, "
-                      "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
-                      "XID %08x IRQ %d\n",
-                      dev->name,
-                      rtl_chip_info[tp->chipset].name,
-                      dev->base_addr,
-                      dev->dev_addr[0], dev->dev_addr[1],
-                      dev->dev_addr[2], dev->dev_addr[3],
-                      dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
-       }
+       netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
+                  rtl_chip_info[tp->chipset].name,
+                  dev->base_addr, dev->dev_addr,
+                  (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
 
        rtl8169_init_phy(dev, tp);
 
@@ -3235,15 +3212,23 @@ static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
        flush_scheduled_work();
 
        unregister_netdev(dev);
+
+       /* restore original MAC address */
+       rtl_rar_set(tp, dev->perm_addr);
+
        rtl_disable_msi(pdev, tp);
        rtl8169_release_board(pdev, dev, tp->mmio_addr);
        pci_set_drvdata(pdev, NULL);
 }
 
 static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
-                                 struct net_device *dev)
+                                 unsigned int mtu)
 {
-       unsigned int max_frame = dev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+       unsigned int max_frame = mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+
+       if (max_frame != 16383)
+               printk(KERN_WARNING PFX "WARNING! Changing of MTU on this "
+                       "NIC may lead to frame reception errors!\n");
 
        tp->rx_buf_sz = (max_frame > RX_BUF_SIZE) ? max_frame : RX_BUF_SIZE;
 }
@@ -3255,7 +3240,17 @@ static int rtl8169_open(struct net_device *dev)
        int retval = -ENOMEM;
 
 
-       rtl8169_set_rxbufsize(tp, dev);
+       /*
+        * Note that we use a magic value here, its wierd I know
+        * its done because, some subset of rtl8169 hardware suffers from
+        * a problem in which frames received that are longer than
+        * the size set in RxMaxSize register return garbage sizes
+        * when received.  To avoid this we need to turn off filtering,
+        * which is done by setting a value of 16383 in the RxMaxSize register
+        * and allocating 16k frames to handle the largest possible rx value
+        * thats what the magic math below does.
+        */
+       rtl8169_set_rxbufsize(tp, 16383 - VLAN_ETH_HLEN - ETH_FCS_LEN);
 
        /*
         * Rx and Tx desscriptors needs 256 bytes alignment.
@@ -3908,7 +3903,7 @@ static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
 
        rtl8169_down(dev);
 
-       rtl8169_set_rxbufsize(tp, dev);
+       rtl8169_set_rxbufsize(tp, dev->mtu);
 
        ret = rtl8169_init_ring(dev);
        if (ret < 0)
@@ -4132,10 +4127,10 @@ static void rtl8169_reinit_task(struct work_struct *work)
 
        ret = rtl8169_open(dev);
        if (unlikely(ret < 0)) {
-               if (net_ratelimit() && netif_msg_drv(tp)) {
-                       printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
-                              " Rescheduling.\n", dev->name, ret);
-               }
+               if (net_ratelimit())
+                       netif_err(tp, drv, dev,
+                                 "reinit failure (status = %d). Rescheduling\n",
+                                 ret);
                rtl8169_schedule_work(dev, rtl8169_reinit_task);
        }
 
@@ -4165,10 +4160,8 @@ static void rtl8169_reset_task(struct work_struct *work)
                netif_wake_queue(dev);
                rtl8169_check_link_status(dev, tp, tp->mmio_addr);
        } else {
-               if (net_ratelimit() && netif_msg_intr(tp)) {
-                       printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
-                              dev->name);
-               }
+               if (net_ratelimit())
+                       netif_emerg(tp, intr, dev, "Rx buffers shortage\n");
                rtl8169_schedule_work(dev, rtl8169_reset_task);
        }
 
@@ -4256,11 +4249,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
        u32 opts1;
 
        if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
-               if (netif_msg_drv(tp)) {
-                       printk(KERN_ERR
-                              "%s: BUG! Tx Ring full when queue awake!\n",
-                              dev->name);
-               }
+               netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
                goto err_stop;
        }
 
@@ -4293,7 +4282,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
        tp->cur_tx += frags + 1;
 
-       smp_wmb();
+       wmb();
 
        RTL_W8(TxPoll, NPQ);    /* set polling bit */
 
@@ -4322,11 +4311,8 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
        pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
        pci_read_config_word(pdev, PCI_STATUS, &pci_status);
 
-       if (netif_msg_intr(tp)) {
-               printk(KERN_ERR
-                      "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
-                      dev->name, pci_cmd, pci_status);
-       }
+       netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
+                 pci_cmd, pci_status);
 
        /*
         * The recovery sequence below admits a very elaborated explanation:
@@ -4350,8 +4336,7 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
 
        /* The infamous DAC f*ckup only happens at boot time */
        if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
-               if (netif_msg_intr(tp))
-                       printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
+               netif_info(tp, intr, dev, "disabling PCI DAC\n");
                tp->cp_cmd &= ~PCIDAC;
                RTL_W16(CPlusCmd, tp->cp_cmd);
                dev->features &= ~NETIF_F_HIGHDMA;
@@ -4478,11 +4463,8 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
                if (status & DescOwn)
                        break;
                if (unlikely(status & RxRES)) {
-                       if (netif_msg_rx_err(tp)) {
-                               printk(KERN_INFO
-                                      "%s: Rx ERROR. status = %08x\n",
-                                      dev->name, status);
-                       }
+                       netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
+                                  status);
                        dev->stats.rx_errors++;
                        if (status & (RxRWT | RxRUNT))
                                dev->stats.rx_length_errors++;
@@ -4545,8 +4527,8 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
        tp->cur_rx = cur_rx;
 
        delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
-       if (!delta && count && netif_msg_intr(tp))
-               printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
+       if (!delta && count)
+               netif_info(tp, intr, dev, "no Rx buffer allocated\n");
        tp->dirty_rx += delta;
 
        /*
@@ -4556,8 +4538,8 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
         *   after refill ?
         * - how do others driver handle this condition (Uh oh...).
         */
-       if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))
-               printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
+       if (tp->dirty_rx + NUM_RX_DESC == tp->cur_rx)
+               netif_emerg(tp, intr, dev, "Rx buffers exhausted\n");
 
        return count;
 }
@@ -4612,10 +4594,9 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
 
                        if (likely(napi_schedule_prep(&tp->napi)))
                                __napi_schedule(&tp->napi);
-                       else if (netif_msg_intr(tp)) {
-                               printk(KERN_INFO "%s: interrupt %04x in poll\n",
-                               dev->name, status);
-                       }
+                       else
+                               netif_info(tp, intr, dev,
+                                          "interrupt %04x in poll\n", status);
                }
 
                /* We only get a new MSI interrupt when all active irq
@@ -4652,7 +4633,7 @@ static int rtl8169_poll(struct napi_struct *napi, int budget)
                 * until it does.
                 */
                tp->intr_mask = 0xffff;
-               smp_wmb();
+               wmb();
                RTL_W16(IntrMask, tp->intr_event);
        }
 
@@ -4751,27 +4732,22 @@ static void rtl_set_rx_mode(struct net_device *dev)
 
        if (dev->flags & IFF_PROMISC) {
                /* Unconditionally log net taps. */
-               if (netif_msg_link(tp)) {
-                       printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
-                              dev->name);
-               }
+               netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
                rx_mode =
                    AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
                    AcceptAllPhys;
                mc_filter[1] = mc_filter[0] = 0xffffffff;
-       } else if ((dev->mc_count > multicast_filter_limit)
-                  || (dev->flags & IFF_ALLMULTI)) {
+       } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+                  (dev->flags & IFF_ALLMULTI)) {
                /* Too many to filter perfectly -- accept all multicasts. */
                rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
                mc_filter[1] = mc_filter[0] = 0xffffffff;
        } else {
                struct dev_mc_list *mclist;
-               unsigned int i;
 
                rx_mode = AcceptBroadcast | AcceptMyPhys;
                mc_filter[1] = mc_filter[0] = 0;
-               for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
-                    i++, mclist = mclist->next) {
+               netdev_for_each_mc_addr(mclist, dev) {
                        int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
                        mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
                        rx_mode |= AcceptMulticast;
@@ -4790,8 +4766,8 @@ static void rtl_set_rx_mode(struct net_device *dev)
                mc_filter[1] = swab32(data);
        }
 
-       RTL_W32(MAR0 + 0, mc_filter[0]);
        RTL_W32(MAR0 + 4, mc_filter[1]);
+       RTL_W32(MAR0 + 0, mc_filter[0]);
 
        RTL_W32(RxConfig, tmp);
 
@@ -4855,7 +4831,7 @@ out:
        return 0;
 }
 
-static struct dev_pm_ops rtl8169_pm_ops = {
+static const struct dev_pm_ops rtl8169_pm_ops = {
        .suspend = rtl8169_suspend,
        .resume = rtl8169_resume,
        .freeze = rtl8169_suspend,
@@ -4880,6 +4856,9 @@ static void rtl_shutdown(struct pci_dev *pdev)
 
        rtl8169_net_suspend(dev);
 
+       /* restore original MAC address */
+       rtl_rar_set(tp, dev->perm_addr);
+
        spin_lock_irq(&tp->lock);
 
        rtl8169_asic_down(ioaddr);