Commit b57b7e5a authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Francois Romieu
Browse files

[PATCH] r8169: ethtool message level control support 



Also:
- ratelimit the too much work at interrupt message, so if under massive
  packet load the console doesn't get flooded;
- removal of a few PFX used in contexts where dev->name is available;
- s/->slot_name/pci_name/;
- printed_version is redundant with the debug option. Remove it and let
  the user decide.

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarFrancois Romieu <romieu@fr.zoreil.com>
parent df0a1bf6

drivers/net/r8169.c

+135 −56
Original line number Diff line number Diff line
@@ -91,6 +91,10 @@ VERSION 2.2LK <2005/01/25> 
#define dprintk(fmt, args...)	do {} while (0)

#endif /* RTL8169_DEBUG */



#define R8169_MSG_DEFAULT \

	(NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | \

	 NETIF_MSG_IFDOWN)



#define TX_BUFFS_AVAIL(tp) \

	(tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
@@ -190,6 +194,9 @@ MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); 


static int rx_copybreak = 200;

static int use_dac;

static struct {

	u32 msg_enable;

} debug = { -1 };



enum RTL8169_registers {

	MAC0 = 0,		/* Ethernet hardware address. */
@@ -392,6 +399,7 @@ struct rtl8169_private { 
	struct pci_dev *pci_dev;	/* Index of PCI device */

	struct net_device_stats stats;	/* statistics of net device */

	spinlock_t lock;		/* spin lock flag */

	u32 msg_enable;

	int chipset;

	int mac_version;

	int phy_version;
@@ -430,6 +438,8 @@ module_param(rx_copybreak, int, 0); 
MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");

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_LICENSE("GPL");

MODULE_VERSION(RTL8169_VERSION);
@@ -552,9 +562,13 @@ 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);

	} else

	} else {

		if (netif_msg_ifdown(tp))

			printk(KERN_INFO PFX "%s: link down\n", dev->name);

		netif_carrier_off(dev);

	}

	spin_unlock_irqrestore(&tp->lock, flags);

}
@@ -578,7 +592,7 @@ static void rtl8169_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex) 
	

	option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff;



	if ((option != 0xff) && !idx)

	if ((option != 0xff) && !idx && netif_msg_drv(&debug))

		printk(KERN_WARNING PFX "media option is deprecated.\n");



	for (p = link_settings; p->media != 0xff; p++) {
@@ -620,9 +634,11 @@ static int rtl8169_set_speed_tbi(struct net_device *dev, 
	} else if (autoneg == AUTONEG_ENABLE)

		RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);

	else {

		printk(KERN_WARNING PFX

		       "%s: incorrect speed setting refused in TBI mode\n",

		if (netif_msg_link(tp)) {

			printk(KERN_WARNING "%s: "

			       "incorrect speed setting refused in TBI mode\n",

			       dev->name);

		}

		ret = -EOPNOTSUPP;

	}
@@ -880,12 +896,28 @@ static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, 
        spin_unlock_irqrestore(&tp->lock, flags);

}



static u32 rtl8169_get_msglevel(struct net_device *dev)

{

	struct rtl8169_private *tp = netdev_priv(dev);



	return tp->msg_enable;

}



static void rtl8169_set_msglevel(struct net_device *dev, u32 value)

{

	struct rtl8169_private *tp = netdev_priv(dev);



	tp->msg_enable = value;

}



static struct ethtool_ops rtl8169_ethtool_ops = {

	.get_drvinfo		= rtl8169_get_drvinfo,

	.get_regs_len		= rtl8169_get_regs_len,

	.get_link		= ethtool_op_get_link,

	.get_settings		= rtl8169_get_settings,

	.set_settings		= rtl8169_set_settings,

	.get_msglevel		= rtl8169_get_msglevel,

	.set_msglevel		= rtl8169_set_msglevel,

	.get_rx_csum		= rtl8169_get_rx_csum,

	.set_rx_csum		= rtl8169_set_rx_csum,

	.get_tx_csum		= ethtool_op_get_tx_csum,
@@ -1100,7 +1132,8 @@ static void rtl8169_phy_timer(unsigned long __opaque) 
	if (tp->link_ok(ioaddr))

		goto out_unlock;



	printk(KERN_WARNING PFX "%s: PHY reset until link up\n", dev->name);

	if (netif_msg_link(tp))

		printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);



	tp->phy_reset_enable(ioaddr);
@@ -1178,6 +1211,7 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
	/* dev zeroed in alloc_etherdev */

	dev = alloc_etherdev(sizeof (*tp));

	if (dev == NULL) {

		if (netif_msg_drv(&debug))

			printk(KERN_ERR PFX "unable to alloc new ethernet\n");

		goto err_out;

	}
@@ -1185,11 +1219,15 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
	SET_MODULE_OWNER(dev);

	SET_NETDEV_DEV(dev, &pdev->dev);

	tp = netdev_priv(dev);

	tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);



	/* enable device (incl. PCI PM wakeup and hotplug setup) */

	rc = pci_enable_device(pdev);

	if (rc) {

		printk(KERN_ERR PFX "%s: enable failure\n", pci_name(pdev));

	if (rc < 0) {

		if (netif_msg_probe(tp)) {

			printk(KERN_ERR PFX "%s: enable failure\n",

			       pci_name(pdev));

		}

		goto err_out_free_dev;

	}
@@ -1205,29 +1243,39 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
		pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command);

		acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK;

	} else {

		if (netif_msg_probe(tp)) {

			printk(KERN_ERR PFX

		       "Cannot find PowerManagement capability, aborting.\n");

			       "Cannot find PowerManagement capability. "

			       "Aborting.\n");

		}

		goto err_out_mwi;

	}



	/* make sure PCI base addr 1 is MMIO */

	if (!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {

		if (netif_msg_probe(tp)) {

			printk(KERN_ERR PFX

			       "region #1 not an MMIO resource, aborting\n");

		}

		rc = -ENODEV;

		goto err_out_mwi;

	}

	/* check for weird/broken PCI region reporting */

	if (pci_resource_len(pdev, 1) < R8169_REGS_SIZE) {

		printk(KERN_ERR PFX "Invalid PCI region size(s), aborting\n");

		if (netif_msg_probe(tp)) {

			printk(KERN_ERR PFX

			       "Invalid PCI region size(s), aborting\n");

		}

		rc = -ENODEV;

		goto err_out_mwi;

	}



	rc = pci_request_regions(pdev, MODULENAME);

	if (rc) {

	if (rc < 0) {

		if (netif_msg_probe(tp)) {

			printk(KERN_ERR PFX "%s: could not request regions.\n",

			       pci_name(pdev));

		}

		goto err_out_mwi;

	}
@@ -1240,7 +1288,10 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
	} else {

		rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);

		if (rc < 0) {

			printk(KERN_ERR PFX "DMA configuration failed.\n");

			if (netif_msg_probe(tp)) {

				printk(KERN_ERR PFX

				       "DMA configuration failed.\n");

			}

			goto err_out_free_res;

		}

	}
@@ -1250,6 +1301,7 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
	/* ioremap MMIO region */

	ioaddr = ioremap(pci_resource_start(pdev, 1), R8169_REGS_SIZE);

	if (ioaddr == NULL) {

		if (netif_msg_probe(tp))

			printk(KERN_ERR PFX "cannot remap MMIO, aborting\n");

		rc = -EIO;

		goto err_out_free_res;
@@ -1281,9 +1333,11 @@ rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, 
	}

	if (i < 0) {

		/* Unknown chip: assume array element #0, original RTL-8169 */

		printk(KERN_DEBUG PFX

		       "PCI device %s: unknown chip version, assuming %s\n",

		if (netif_msg_probe(tp)) {

			printk(KERN_DEBUG PFX "PCI device %s: "

			       "unknown chip version, assuming %s\n",

			       pci_name(pdev), rtl_chip_info[0].name);

		}

		i++;

	}

	tp->chipset = i;
@@ -1317,7 +1371,6 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
	struct rtl8169_private *tp;

	void __iomem *ioaddr = NULL;

	static int board_idx = -1;

	static int printed_version = 0;

	u8 autoneg, duplex;

	u16 speed;

	int i, rc;
@@ -1327,10 +1380,9 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 


	board_idx++;



	if (!printed_version) {

	if (netif_msg_drv(&debug)) {

		printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",

		       MODULENAME, RTL8169_VERSION);

		printed_version = 1;

	}



	rc = rtl8169_init_board(pdev, &dev, &ioaddr);
@@ -1399,11 +1451,14 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
		return rc;

	}



	printk(KERN_DEBUG "%s: Identified chip type is '%s'.\n", dev->name,

	       rtl_chip_info[tp->chipset].name);

	if (netif_msg_probe(tp)) {

		printk(KERN_DEBUG "%s: Identified chip type is '%s'.\n",

		       dev->name, rtl_chip_info[tp->chipset].name);

	}



	pci_set_drvdata(pdev, dev);



	if (netif_msg_probe(tp)) {

		printk(KERN_INFO "%s: %s at 0x%lx, "

		       "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "

		       "IRQ %d\n",
@@ -1413,6 +1468,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
		       dev->dev_addr[0], dev->dev_addr[1],

		       dev->dev_addr[2], dev->dev_addr[3],

		       dev->dev_addr[4], dev->dev_addr[5], dev->irq);

	}



	rtl8169_hw_phy_config(dev);
@@ -1435,7 +1491,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 


	rtl8169_set_speed(dev, autoneg, speed, duplex);

	

	if (RTL_R8(PHYstatus) & TBI_Enable)

	if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))

		printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);



	return 0;
@@ -1868,9 +1924,14 @@ static void rtl8169_reinit_task(void *_data) 
	ret = rtl8169_open(dev);

	if (unlikely(ret < 0)) {

		if (net_ratelimit()) {

			printk(PFX KERN_ERR "%s: reinit failure (status = %d)."

			struct rtl8169_private *tp = netdev_priv(dev);



			if (netif_msg_drv(tp)) {

				printk(PFX KERN_ERR

				       "%s: reinit failure (status = %d)."

				       " Rescheduling.\n", dev->name, ret);

			}

		}

		rtl8169_schedule_work(dev, rtl8169_reinit_task);

	}

}
@@ -1894,8 +1955,12 @@ static void rtl8169_reset_task(void *_data) 
		netif_wake_queue(dev);

	} else {

		if (net_ratelimit()) {

			printk(PFX KERN_EMERG "%s: Rx buffers shortage\n",

			       dev->name);

			struct rtl8169_private *tp = netdev_priv(dev);



			if (netif_msg_intr(tp)) {

				printk(PFX KERN_EMERG

				       "%s: Rx buffers shortage\n", dev->name);

			}

		}

		rtl8169_schedule_work(dev, rtl8169_reset_task);

	}
@@ -1981,8 +2046,11 @@ static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	int ret = 0;

	

	if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {

		printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",

		if (netif_msg_drv(tp)) {

			printk(KERN_ERR

			       "%s: BUG! Tx Ring full when queue awake!\n",

			       dev->name);

		}

		goto err_stop;

	}
@@ -2057,8 +2125,11 @@ 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);



	printk(KERN_ERR PFX "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",

	if (netif_msg_intr(tp)) {

		printk(KERN_ERR

		       "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",

		       dev->name, pci_cmd, pci_status);

	}



	/*

	 * The recovery sequence below admits a very elaborated explanation:
@@ -2077,7 +2148,8 @@ 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) {

		printk(KERN_INFO PFX "%s: disabling PCI DAC.\n", dev->name);

		if (netif_msg_intr(tp))

			printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);

		tp->cp_cmd &= ~PCIDAC;

		RTL_W16(CPlusCmd, tp->cp_cmd);

		dev->features &= ~NETIF_F_HIGHDMA;
@@ -2199,8 +2271,11 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp, 
		if (status & DescOwn)

			break;

		if (status & RxRES) {

			printk(KERN_INFO "%s: Rx ERROR. status = %08x\n",

			if (netif_msg_rx_err(tp)) {

				printk(KERN_INFO

				       "%s: Rx ERROR. status = %08x\n",

				       dev->name, status);

			}

			tp->stats.rx_errors++;

			if (status & (RxRWT | RxRUNT))

				tp->stats.rx_length_errors++;
@@ -2260,7 +2335,7 @@ move_on: 
	tp->cur_rx = cur_rx;



	delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);

	if (!delta && count)

	if (!delta && count && netif_msg_intr(tp))

		printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);

	tp->dirty_rx += delta;
@@ -2271,7 +2346,7 @@ move_on: 
	 *   after refill ?

	 * - how do others driver handle this condition (Uh oh...).

	 */

	if (tp->dirty_rx + NUM_RX_DESC == tp->cur_rx)

	if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))

		printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);



	return count;
@@ -2323,7 +2398,7 @@ rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs) 


		if (likely(netif_rx_schedule_prep(dev)))

			__netif_rx_schedule(dev);

		else {

		else if (netif_msg_intr(tp)) {

			printk(KERN_INFO "%s: interrupt %04x taken in poll\n",

			       dev->name, status);	

		}
@@ -2342,8 +2417,10 @@ rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs) 
	} while (boguscnt > 0);



	if (boguscnt <= 0) {

		printk(KERN_WARNING "%s: Too much work at interrupt!\n",

		       dev->name);

		if (net_ratelimit() && netif_msg_intr(tp)) {

			printk(KERN_WARNING

			       "%s: Too much work at interrupt!\n", dev->name);

		}

		/* Clear all interrupt sources. */

		RTL_W16(IntrStatus, 0xffff);

	}
@@ -2466,8 +2543,10 @@ rtl8169_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);

		}

		rx_mode =

		    AcceptBroadcast | AcceptMulticast | AcceptMyPhys |

		    AcceptAllPhys;

CRA Git | Maintained and supported by SUSTech CRA and CCSE