Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Conflicts:

	net/mac80211/tx.c

drivers/net/atlx/atl1.c

@@ -471,7 +471,6 @@ static int atl1_get_permanent_address(struct atl1_hw *hw)
 			memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
 			return 0;
 		}
-		return 1;
 	}
 
 	/* see if SPI FLAGS exist ? */

drivers/net/enc28j60.c

@@ -400,26 +400,31 @@ enc28j60_packet_write(struct enc28j60_net *priv, int len, const u8 *data)
 	mutex_unlock(&priv->lock);
 }
 
+static unsigned long msec20_to_jiffies;
+
+static int poll_ready(struct enc28j60_net *priv, u8 reg, u8 mask, u8 val)
+{
+	unsigned long timeout = jiffies + msec20_to_jiffies;
+
+	/* 20 msec timeout read */
+	while ((nolock_regb_read(priv, reg) & mask) != val) {
+		if (time_after(jiffies, timeout)) {
+			if (netif_msg_drv(priv))
+				dev_dbg(&priv->spi->dev,
+					"reg %02x ready timeout!\n", reg);
+			return -ETIMEDOUT;
+		}
+		cpu_relax();
+	}
+	return 0;
+}
+
 /*
  * Wait until the PHY operation is complete.
  */
 static int wait_phy_ready(struct enc28j60_net *priv)
 {
-	unsigned long timeout = jiffies + 20 * HZ / 1000;
+	return poll_ready(priv, MISTAT, MISTAT_BUSY, 0) ? 0 : 1;
-	int ret = 1;
-
-	/* 20 msec timeout read */
-	while (nolock_regb_read(priv, MISTAT) & MISTAT_BUSY) {
-		if (time_after(jiffies, timeout)) {
-			if (netif_msg_drv(priv))
-				printk(KERN_DEBUG DRV_NAME
-					": PHY ready timeout!\n");
-			ret = 0;
-			break;
-		}
-		cpu_relax();
-	}
-	return ret;
 }
 
 /*
@@ -594,6 +599,32 @@ static void nolock_txfifo_init(struct enc28j60_net *priv, u16 start, u16 end)
 	nolock_regw_write(priv, ETXNDL, end);
 }
 
+/*
+ * Low power mode shrinks power consumption about 100x, so we'd like
+ * the chip to be in that mode whenever it's inactive.  (However, we
+ * can't stay in lowpower mode during suspend with WOL active.)
+ */
+static void enc28j60_lowpower(struct enc28j60_net *priv, bool is_low)
+{
+	if (netif_msg_drv(priv))
+		dev_dbg(&priv->spi->dev, "%s power...\n",
+				is_low ? "low" : "high");
+
+	mutex_lock(&priv->lock);
+	if (is_low) {
+		nolock_reg_bfclr(priv, ECON1, ECON1_RXEN);
+		poll_ready(priv, ESTAT, ESTAT_RXBUSY, 0);
+		poll_ready(priv, ECON1, ECON1_TXRTS, 0);
+		/* ECON2_VRPS was set during initialization */
+		nolock_reg_bfset(priv, ECON2, ECON2_PWRSV);
+	} else {
+		nolock_reg_bfclr(priv, ECON2, ECON2_PWRSV);
+		poll_ready(priv, ESTAT, ESTAT_CLKRDY, ESTAT_CLKRDY);
+		/* caller sets ECON1_RXEN */
+	}
+	mutex_unlock(&priv->lock);
+}
+
 static int enc28j60_hw_init(struct enc28j60_net *priv)
 {
 	u8 reg;
@@ -612,8 +643,8 @@ static int enc28j60_hw_init(struct enc28j60_net *priv)
 	priv->tx_retry_count = 0;
 	priv->max_pk_counter = 0;
 	priv->rxfilter = RXFILTER_NORMAL;
-	/* enable address auto increment */
+	/* enable address auto increment and voltage regulator powersave */
-	nolock_regb_write(priv, ECON2, ECON2_AUTOINC);
+	nolock_regb_write(priv, ECON2, ECON2_AUTOINC | ECON2_VRPS);
 
 	nolock_rxfifo_init(priv, RXSTART_INIT, RXEND_INIT);
 	nolock_txfifo_init(priv, TXSTART_INIT, TXEND_INIT);
@@ -690,7 +721,7 @@ static int enc28j60_hw_init(struct enc28j60_net *priv)
 
 static void enc28j60_hw_enable(struct enc28j60_net *priv)
 {
-	/* enable interrutps */
+	/* enable interrupts */
 	if (netif_msg_hw(priv))
 		printk(KERN_DEBUG DRV_NAME ": %s() enabling interrupts.\n",
 			__FUNCTION__);
@@ -726,15 +757,12 @@ enc28j60_setlink(struct net_device *ndev, u8 autoneg, u16 speed, u8 duplex)
 	int ret = 0;
 
 	if (!priv->hw_enable) {
-		if (autoneg == AUTONEG_DISABLE && speed == SPEED_10) {
+		/* link is in low power mode now; duplex setting
+		 * will take effect on next enc28j60_hw_init().
+		 */
+		if (autoneg == AUTONEG_DISABLE && speed == SPEED_10)
 			priv->full_duplex = (duplex == DUPLEX_FULL);
-			if (!enc28j60_hw_init(priv)) {
+		else {
-				if (netif_msg_drv(priv))
-					dev_err(&ndev->dev,
-						"hw_reset() failed\n");
-				ret = -EINVAL;
-			}
-		} else {
 			if (netif_msg_link(priv))
 				dev_warn(&ndev->dev,
 					"unsupported link setting\n");
@@ -1307,7 +1335,8 @@ static int enc28j60_net_open(struct net_device *dev)
 		}
 		return -EADDRNOTAVAIL;
 	}
-	/* Reset the hardware here */
+	/* Reset the hardware here (and take it out of low power mode) */
+	enc28j60_lowpower(priv, false);
 	enc28j60_hw_disable(priv);
 	if (!enc28j60_hw_init(priv)) {
 		if (netif_msg_ifup(priv))
@@ -1337,6 +1366,7 @@ static int enc28j60_net_close(struct net_device *dev)
 		printk(KERN_DEBUG DRV_NAME ": %s() enter\n", __FUNCTION__);
 
 	enc28j60_hw_disable(priv);
+	enc28j60_lowpower(priv, true);
 	netif_stop_queue(dev);
 
 	return 0;
@@ -1537,6 +1567,8 @@ static int __devinit enc28j60_probe(struct spi_device *spi)
 	dev->watchdog_timeo = TX_TIMEOUT;
 	SET_ETHTOOL_OPS(dev, &enc28j60_ethtool_ops);
 
+	enc28j60_lowpower(priv, true);
+
 	ret = register_netdev(dev);
 	if (ret) {
 		if (netif_msg_probe(priv))
@@ -1556,7 +1588,7 @@ error_alloc:
 	return ret;
 }
 
-static int enc28j60_remove(struct spi_device *spi)
+static int __devexit enc28j60_remove(struct spi_device *spi)
 {
 	struct enc28j60_net *priv = dev_get_drvdata(&spi->dev);
 
@@ -1573,15 +1605,16 @@ static int enc28j60_remove(struct spi_device *spi)
 static struct spi_driver enc28j60_driver = {
 	.driver = {
 		   .name = DRV_NAME,
-		   .bus = &spi_bus_type,
 		   .owner = THIS_MODULE,
-		   },
+	 },
 	.probe = enc28j60_probe,
 	.remove = __devexit_p(enc28j60_remove),
 };
 
 static int __init enc28j60_init(void)
 {
+	msec20_to_jiffies = msecs_to_jiffies(20);
+
 	return spi_register_driver(&enc28j60_driver);
 }
 

drivers/net/ibm_newemac/Kconfig

@@ -1,6 +1,7 @@
 config IBM_NEW_EMAC
 	tristate "IBM EMAC Ethernet support"
 	depends on PPC_DCR && PPC_MERGE
+	select CRC32
 	help
 	  This driver supports the IBM EMAC family of Ethernet controllers
 	  typically found on 4xx embedded PowerPC chips, but also on the

drivers/net/netxen/netxen_nic.h

@@ -776,7 +776,6 @@ struct netxen_hardware_context {
 
 	u8 revision_id;
 	u16 board_type;
-	u16 max_ports;
 	struct netxen_board_info boardcfg;
 	u32 xg_linkup;
 	u32 qg_linksup;
@@ -863,6 +862,7 @@ struct netxen_adapter {
 	unsigned char mac_addr[ETH_ALEN];
 	int mtu;
 	int portnum;
+	u8 physical_port;
 
 	struct work_struct watchdog_task;
 	struct timer_list watchdog_timer;
@@ -1034,7 +1034,6 @@ int netxen_rom_se(struct netxen_adapter *adapter, int addr);
 
 /* Functions from netxen_nic_isr.c */
 void netxen_initialize_adapter_sw(struct netxen_adapter *adapter);
-void netxen_initialize_adapter_hw(struct netxen_adapter *adapter);
 void *netxen_alloc(struct pci_dev *pdev, size_t sz, dma_addr_t * ptr,
 		   struct pci_dev **used_dev);
 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter);
@@ -1077,20 +1076,6 @@ static const struct netxen_brdinfo netxen_boards[] = {
 
 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(netxen_boards)
 
-static inline void get_brd_port_by_type(u32 type, int *ports)
-{
-	int i, found = 0;
-	for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
-		if (netxen_boards[i].brdtype == type) {
-			*ports = netxen_boards[i].ports;
-			found = 1;
-			break;
-		}
-	}
-	if (!found)
-		*ports = 0;
-}
-
 static inline void get_brd_name_by_type(u32 type, char *name)
 {
 	int i, found = 0;
@@ -1169,5 +1154,4 @@ extern int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr,
 
 extern struct ethtool_ops netxen_nic_ethtool_ops;
 
-extern int physical_port[];	/* physical port # from virtual port.*/
 #endif				/* __NETXEN_NIC_H_ */

drivers/net/netxen/netxen_nic_ethtool.c

@@ -369,7 +369,7 @@ netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
 		for (i = 3; niu_registers[mode].reg[i - 3] != -1; i++) {
 			/* GB: port specific registers */
 			if (mode == 0 && i >= 19)
-				window = physical_port[adapter->portnum] *
+				window = adapter->physical_port *
 					NETXEN_NIC_PORT_WINDOW;
 
 			NETXEN_NIC_LOCKED_READ_REG(niu_registers[mode].
@@ -527,7 +527,7 @@ netxen_nic_get_pauseparam(struct net_device *dev,
 {
 	struct netxen_adapter *adapter = netdev_priv(dev);
 	__u32 val;
-	int port = physical_port[adapter->portnum];
+	int port = adapter->physical_port;
 
 	if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
 		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
@@ -573,7 +573,7 @@ netxen_nic_set_pauseparam(struct net_device *dev,
 {
 	struct netxen_adapter *adapter = netdev_priv(dev);
 	__u32 val;
-	int port = physical_port[adapter->portnum];
+	int port = adapter->physical_port;
 	/* read mode */
 	if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
 		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))

drivers/net/netxen/netxen_nic_hw.c

@@ -396,11 +396,8 @@ int netxen_nic_hw_resources(struct netxen_adapter *adapter)
 	}
 	adapter->intr_scheme = readl(
 		NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_FW));
-	printk(KERN_NOTICE "%s: FW capabilities:0x%x\n", netxen_nic_driver_name,
-			adapter->intr_scheme);
 	adapter->msi_mode = readl(
 		NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_FW));
-	DPRINTK(INFO, "Receive Peg ready too. starting stuff\n");
 
 	addr = netxen_alloc(adapter->ahw.pdev,
 			    sizeof(struct netxen_ring_ctx) +
@@ -408,8 +405,6 @@ int netxen_nic_hw_resources(struct netxen_adapter *adapter)
 			    (dma_addr_t *) & adapter->ctx_desc_phys_addr,
 			    &adapter->ctx_desc_pdev);
 
-	printk(KERN_INFO "ctx_desc_phys_addr: 0x%llx\n",
-	       (unsigned long long) adapter->ctx_desc_phys_addr);
 	if (addr == NULL) {
 		DPRINTK(ERR, "bad return from pci_alloc_consistent\n");
 		err = -ENOMEM;
@@ -429,8 +424,6 @@ int netxen_nic_hw_resources(struct netxen_adapter *adapter)
 			    adapter->max_tx_desc_count,
 			    (dma_addr_t *) & hw->cmd_desc_phys_addr,
 			    &adapter->ahw.cmd_desc_pdev);
-	printk(KERN_INFO "cmd_desc_phys_addr: 0x%llx\n",
-	       (unsigned long long) hw->cmd_desc_phys_addr);
 
 	if (addr == NULL) {
 		DPRINTK(ERR, "bad return from pci_alloc_consistent\n");
@@ -1032,15 +1025,15 @@ int netxen_nic_get_board_info(struct netxen_adapter *adapter)
 int netxen_nic_set_mtu_gb(struct netxen_adapter *adapter, int new_mtu)
 {
 	netxen_nic_write_w0(adapter,
-			NETXEN_NIU_GB_MAX_FRAME_SIZE(
+		NETXEN_NIU_GB_MAX_FRAME_SIZE(adapter->physical_port),
-				physical_port[adapter->portnum]), new_mtu);
+		new_mtu);
 	return 0;
 }
 
 int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
 {
 	new_mtu += NETXEN_NIU_HDRSIZE + NETXEN_NIU_TLRSIZE;
-	if (physical_port[adapter->portnum] == 0)
+	if (adapter->physical_port == 0)
 		netxen_nic_write_w0(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE,
 				new_mtu);
 	else
@@ -1051,7 +1044,7 @@ int netxen_nic_set_mtu_xgb(struct netxen_adapter *adapter, int new_mtu)
 
 void netxen_nic_init_niu_gb(struct netxen_adapter *adapter)
 {
-	netxen_niu_gbe_init_port(adapter, physical_port[adapter->portnum]);
+	netxen_niu_gbe_init_port(adapter, adapter->physical_port);
 }
 
 void
@@ -1127,7 +1120,6 @@ void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
 
 void netxen_nic_flash_print(struct netxen_adapter *adapter)
 {
-	int valid = 1;
 	u32 fw_major = 0;
 	u32 fw_minor = 0;
 	u32 fw_build = 0;
@@ -1137,70 +1129,62 @@ void netxen_nic_flash_print(struct netxen_adapter *adapter)
 	__le32 *ptr32;
 
 	struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
-	if (board_info->magic != NETXEN_BDINFO_MAGIC) {
-		printk
-		    ("NetXen Unknown board config, Read 0x%x expected as 0x%x\n",
-		     board_info->magic, NETXEN_BDINFO_MAGIC);
-		valid = 0;
-	}
-	if (board_info->header_version != NETXEN_BDINFO_VERSION) {
-		printk("NetXen Unknown board config version."
-		       " Read %x, expected %x\n",
-		       board_info->header_version, NETXEN_BDINFO_VERSION);
-		valid = 0;
-	}
-	if (valid) {
-		ptr32 = (u32 *)&serial_num;
-		addr = NETXEN_USER_START +
-		       offsetof(struct netxen_new_user_info, serial_num);
-		for (i = 0; i < 8; i++) {
-			if (netxen_rom_fast_read(adapter, addr, ptr32) == -1) {
-				printk("%s: ERROR reading %s board userarea.\n",
-				       netxen_nic_driver_name,
-				       netxen_nic_driver_name);
-				return;
-			}
-			ptr32++;
-			addr += sizeof(u32);
-		}
 
+	adapter->driver_mismatch = 0;
+
+	ptr32 = (u32 *)&serial_num;
+	addr = NETXEN_USER_START +
+	       offsetof(struct netxen_new_user_info, serial_num);
+	for (i = 0; i < 8; i++) {
+		if (netxen_rom_fast_read(adapter, addr, ptr32) == -1) {
+			printk("%s: ERROR reading %s board userarea.\n",
+			       netxen_nic_driver_name,
+			       netxen_nic_driver_name);
+			adapter->driver_mismatch = 1;
+			return;
+		}
+		ptr32++;
+		addr += sizeof(u32);
+	}
+
+	fw_major = readl(NETXEN_CRB_NORMALIZE(adapter,
+					      NETXEN_FW_VERSION_MAJOR));
+	fw_minor = readl(NETXEN_CRB_NORMALIZE(adapter,
+					      NETXEN_FW_VERSION_MINOR));
+	fw_build =
+	    readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_FW_VERSION_SUB));
+
+	if (adapter->portnum == 0) {
 		get_brd_name_by_type(board_info->board_type, brd_name);
 
 		printk("NetXen %s Board S/N %s  Chip id 0x%x\n",
-		       brd_name, serial_num, board_info->chip_id);
+				brd_name, serial_num, board_info->chip_id);
-
+		printk("NetXen Firmware version %d.%d.%d\n", fw_major,
-		printk("NetXen %s Board #%d, Chip id 0x%x\n",
+				fw_minor, fw_build);
-		       board_info->board_type == 0x0b ? "XGB" : "GBE",
-		       board_info->board_num, board_info->chip_id);
-		fw_major = readl(NETXEN_CRB_NORMALIZE(adapter,
-						      NETXEN_FW_VERSION_MAJOR));
-		fw_minor = readl(NETXEN_CRB_NORMALIZE(adapter,
-						      NETXEN_FW_VERSION_MINOR));
-		fw_build =
-		    readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_FW_VERSION_SUB));
-
-		printk("NetXen Firmware version %d.%d.%d\n", fw_major, fw_minor,
-		       fw_build);
 	}
+
 	if (fw_major != _NETXEN_NIC_LINUX_MAJOR) {
-		printk(KERN_ERR "The mismatch in driver version and firmware "
-		       "version major number\n"
-		       "Driver version major number = %d \t"
-		       "Firmware version major number = %d \n",
-		       _NETXEN_NIC_LINUX_MAJOR, fw_major);
 		adapter->driver_mismatch = 1;
 	}
 	if (fw_minor != _NETXEN_NIC_LINUX_MINOR &&
 			fw_minor != (_NETXEN_NIC_LINUX_MINOR + 1)) {
-		printk(KERN_ERR "The mismatch in driver version and firmware "
-		       "version minor number\n"
-		       "Driver version minor number = %d \t"
-		       "Firmware version minor number = %d \n",
-		       _NETXEN_NIC_LINUX_MINOR, fw_minor);
 		adapter->driver_mismatch = 1;
 	}
-	if (adapter->driver_mismatch)
+	if (adapter->driver_mismatch) {
-		printk(KERN_INFO "Use the driver with version no %d.%d.xxx\n",
+		printk(KERN_ERR "%s: driver and firmware version mismatch\n",
-		       fw_major, fw_minor);
+				adapter->netdev->name);
+		return;
+	}
+
+	switch (adapter->ahw.board_type) {
+	case NETXEN_NIC_GBE:
+		dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
+				adapter->netdev->name);
+		break;
+	case NETXEN_NIC_XGBE:
+		dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
+				adapter->netdev->name);
+		break;
+	}
 }
 

drivers/net/netxen/netxen_nic_init.c

@@ -203,21 +203,6 @@ void netxen_initialize_adapter_sw(struct netxen_adapter *adapter)
 	}
 }
 
-void netxen_initialize_adapter_hw(struct netxen_adapter *adapter)
-{
-	int ports = 0;
-	struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
-
-	if (netxen_nic_get_board_info(adapter) != 0)
-		printk("%s: Error getting board config info.\n",
-		       netxen_nic_driver_name);
-	get_brd_port_by_type(board_info->board_type, &ports);
-	if (ports == 0)
-		printk(KERN_ERR "%s: Unknown board type\n",
-		       netxen_nic_driver_name);
-	adapter->ahw.max_ports = ports;
-}
-
 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
 {
 	switch (adapter->ahw.board_type) {
@@ -765,18 +750,13 @@ int netxen_flash_unlock(struct netxen_adapter *adapter)
 
 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
 {
-	int addr, val, status;
+	int addr, val;
 	int n, i;
 	int init_delay = 0;
 	struct crb_addr_pair *buf;
 	u32 off;
 
 	/* resetall */
-	status = netxen_nic_get_board_info(adapter);
-	if (status)
-		printk("%s: netxen_pinit_from_rom: Error getting board info\n",
-		       netxen_nic_driver_name);
-
 	netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
 				    NETXEN_ROMBUS_RESET);
 
@@ -860,10 +840,10 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
 				netxen_nic_pci_change_crbwindow(adapter, 1);
 			}
 			if (init_delay == 1) {
-				msleep(2000);
+				msleep(1000);
 				init_delay = 0;
 			}
-			msleep(20);
+			msleep(1);
 		}
 		kfree(buf);
 
@@ -938,12 +918,28 @@ int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
 
 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
 {
+	int i;
+
 	if (adapter->dummy_dma.addr) {
-		pci_free_consistent(adapter->ahw.pdev,
+		i = 100;
+		do {
+			if (dma_watchdog_shutdown_request(adapter) == 1)
+				break;
+			msleep(50);
+			if (dma_watchdog_shutdown_poll_result(adapter) == 1)
+				break;
+		} while (--i);
+
+		if (i) {
+			pci_free_consistent(adapter->ahw.pdev,
 				    NETXEN_HOST_DUMMY_DMA_SIZE,
 				    adapter->dummy_dma.addr,
 				    adapter->dummy_dma.phys_addr);
-		adapter->dummy_dma.addr = NULL;
+			adapter->dummy_dma.addr = NULL;
+		} else {
+			printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
+					adapter->netdev->name);
+		}
 	}
 }
 

drivers/net/netxen/netxen_nic_isr.c

@@ -145,7 +145,7 @@ static void netxen_nic_isr_other(struct netxen_adapter *adapter)
 
 	/* verify the offset */
 	val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
-	val = val >> physical_port[adapter->portnum];
+	val = val >> adapter->physical_port;
 	if (val == adapter->ahw.qg_linksup)
 		return;
 
@@ -199,7 +199,7 @@ void netxen_nic_xgbe_handle_phy_intr(struct netxen_adapter *adapter)
 
 	/* WINDOW = 1 */
 	val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
-	val >>= (physical_port[adapter->portnum] * 8);
+	val >>= (adapter->physical_port * 8);
 	val &= 0xff;
 
 	if (adapter->ahw.xg_linkup == 1 && val != XG_LINK_UP) {

drivers/net/netxen/netxen_nic_main.c

@@ -70,17 +70,15 @@ static void netxen_nic_poll_controller(struct net_device *netdev);
 static irqreturn_t netxen_intr(int irq, void *data);
 static irqreturn_t netxen_msi_intr(int irq, void *data);
 
-int physical_port[] = {0, 1, 2, 3};
-
 /*  PCI Device ID Table  */
 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
-	{PCI_DEVICE(0x4040, 0x0001)},
+	{PCI_DEVICE(0x4040, 0x0001), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0002)},
+	{PCI_DEVICE(0x4040, 0x0002), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0003)},
+	{PCI_DEVICE(0x4040, 0x0003), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0004)},
+	{PCI_DEVICE(0x4040, 0x0004), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0005)},
+	{PCI_DEVICE(0x4040, 0x0005), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0024)},
+	{PCI_DEVICE(0x4040, 0x0024), PCI_DEVICE_CLASS(0x020000, ~0)},
-	{PCI_DEVICE(0x4040, 0x0025)},
+	{PCI_DEVICE(0x4040, 0x0025), PCI_DEVICE_CLASS(0x020000, ~0)},
 	{0,}
 };
 
@@ -288,10 +286,11 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	int pci_func_id = PCI_FUNC(pdev->devfn);
 	DECLARE_MAC_BUF(mac);
 
-	printk(KERN_INFO "%s \n", netxen_nic_driver_string);
+	if (pci_func_id == 0)
+		printk(KERN_INFO "%s \n", netxen_nic_driver_string);
 
 	if (pdev->class != 0x020000) {
-		printk(KERN_ERR"NetXen function %d, class %x will not "
+		printk(KERN_DEBUG "NetXen function %d, class %x will not "
 				"be enabled.\n",pci_func_id, pdev->class);
 		return -ENODEV;
 	}
@@ -450,8 +449,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 */
 	adapter->curr_window = 255;
 
-	/* initialize the adapter */
+	if (netxen_nic_get_board_info(adapter) != 0) {
-	netxen_initialize_adapter_hw(adapter);
+		printk("%s: Error getting board config info.\n",
+		       netxen_nic_driver_name);
+		err = -EIO;
+		goto err_out_iounmap;
+	}
 
 	/*
 	 *  Adapter in our case is quad port so initialize it before
@@ -530,17 +533,15 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	netxen_initialize_adapter_sw(adapter);	/* initialize the buffers in adapter */
 
 	/* Mezz cards have PCI function 0,2,3 enabled */
-	if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ)
+	switch (adapter->ahw.boardcfg.board_type) {
-		&& (pci_func_id >= 2))
+	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
+	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
+		if (pci_func_id >= 2)
 			adapter->portnum = pci_func_id - 2;
-
+		break;
-#ifdef CONFIG_IA64
+	default:
-	if(adapter->portnum == 0) {
+		break;
-		netxen_pinit_from_rom(adapter, 0);
-		udelay(500);
-		netxen_load_firmware(adapter);
 	}
-#endif
 
 	init_timer(&adapter->watchdog_timer);
 	adapter->ahw.xg_linkup = 0;
@@ -613,11 +614,18 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 				err = -ENODEV;
 				goto err_out_free_dev;
 		    }
+		} else {
+			writel(0, NETXEN_CRB_NORMALIZE(adapter,
+						CRB_CMDPEG_STATE));
+			netxen_pinit_from_rom(adapter, 0);
+			msleep(1);
+			netxen_load_firmware(adapter);
+			netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
 		}
 
 		/* clear the register for future unloads/loads */
 		writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
-		printk(KERN_INFO "State: 0x%0x\n",
+		dev_info(&pdev->dev, "cmdpeg state: 0x%0x\n",
 			readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
 
 		/*
@@ -639,9 +647,10 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/*
 	 * See if the firmware gave us a virtual-physical port mapping.
 	 */
+	adapter->physical_port = adapter->portnum;
 	i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum)));
 	if (i != 0x55555555)
-		physical_port[adapter->portnum] = i;
+		adapter->physical_port = i;
 
 	netif_carrier_off(netdev);
 	netif_stop_queue(netdev);
@@ -654,22 +663,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_out_free_dev;
 	}
 
+	netxen_nic_flash_print(adapter);
 	pci_set_drvdata(pdev, adapter);
 
-	switch (adapter->ahw.board_type) {
-		case NETXEN_NIC_GBE:
-			printk(KERN_INFO "%s: QUAD GbE board initialized\n",
-			       netxen_nic_driver_name);
-			break;
-
-		case NETXEN_NIC_XGBE:
-			printk(KERN_INFO "%s: XGbE board initialized\n",
-					netxen_nic_driver_name);
-			break;
-	}
-
-	adapter->driver_mismatch = 0;
-
 	return 0;
 
 err_out_free_dev:
@@ -760,55 +756,8 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
 
 	vfree(adapter->cmd_buf_arr);
 
-	if (adapter->portnum == 0) {
+	if (adapter->portnum == 0)
-		if (init_firmware_done) {
+		netxen_free_adapter_offload(adapter);
-			i = 100;
-			do {
-				if (dma_watchdog_shutdown_request(adapter) == 1)
-					break;
-				msleep(100);
-				if (dma_watchdog_shutdown_poll_result(adapter) == 1)
-					break;
-			} while (--i);
-
-			if (i == 0)
-				printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
-						netdev->name);
-
-			/* clear the register for future unloads/loads */
-			writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
-			printk(KERN_INFO "State: 0x%0x\n",
-				readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
-
-			/* leave the hw in the same state as reboot */
-			writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
-			netxen_pinit_from_rom(adapter, 0);
-			msleep(1);
-			netxen_load_firmware(adapter);
-			netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
-		}
-
-		/* clear the register for future unloads/loads */
-		writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
-		printk(KERN_INFO "State: 0x%0x\n",
-			readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
-
-		i = 100;
-		do {
-			if (dma_watchdog_shutdown_request(adapter) == 1)
-				break;
-			msleep(100);
-			if (dma_watchdog_shutdown_poll_result(adapter) == 1)
-				break;
-		} while (--i);
-
-		if (i) {
-			netxen_free_adapter_offload(adapter);
-		} else {
-			printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
-					netdev->name);
-		}
-	}
 
 	if (adapter->irq)
 		free_irq(adapter->irq, adapter);
@@ -840,13 +789,15 @@ static int netxen_nic_open(struct net_device *netdev)
 	irq_handler_t handler;
 	unsigned long flags = IRQF_SAMPLE_RANDOM;
 
+	if (adapter->driver_mismatch)
+		return -EIO;
+
 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
 		err = netxen_init_firmware(adapter);
 		if (err != 0) {
 			printk(KERN_ERR "Failed to init firmware\n");
 			return -EIO;
 		}
-		netxen_nic_flash_print(adapter);
 
 		/* setup all the resources for the Phantom... */
 		/* this include the descriptors for rcv, tx, and status */
@@ -895,14 +846,12 @@ static int netxen_nic_open(struct net_device *netdev)
 	if (adapter->set_mtu)
 		adapter->set_mtu(adapter, netdev->mtu);
 
-	if (!adapter->driver_mismatch)
+	mod_timer(&adapter->watchdog_timer, jiffies);
-		mod_timer(&adapter->watchdog_timer, jiffies);
 
 	napi_enable(&adapter->napi);
 	netxen_nic_enable_int(adapter);
 
-	if (!adapter->driver_mismatch)
+	netif_start_queue(netdev);
-		netif_start_queue(netdev);
 
 	return 0;
 }

drivers/net/netxen/netxen_nic_niu.c

@@ -94,7 +94,7 @@ int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long reg,
 	long timeout = 0;
 	long result = 0;
 	long restore = 0;
-	long phy = physical_port[adapter->portnum];
+	long phy = adapter->physical_port;
 	__u32 address;
 	__u32 command;
 	__u32 status;
@@ -190,7 +190,7 @@ int netxen_niu_gbe_phy_write(struct netxen_adapter *adapter, long reg,
 	long timeout = 0;
 	long result = 0;
 	long restore = 0;
-	long phy = physical_port[adapter->portnum];
+	long phy = adapter->physical_port;
 	__u32 address;
 	__u32 command;
 	__u32 status;
@@ -456,7 +456,7 @@ int netxen_niu_gbe_init_port(struct netxen_adapter *adapter, int port)
 
 int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)
 {
-	u32 portnum = physical_port[adapter->portnum];
+	u32 portnum = adapter->physical_port;
 
 	netxen_crb_writelit_adapter(adapter,
 		NETXEN_NIU_XGE_CONFIG_1+(0x10000*portnum), 0x1447);
@@ -573,7 +573,7 @@ static int netxen_niu_macaddr_get(struct netxen_adapter *adapter,
 {
 	u32 stationhigh;
 	u32 stationlow;
-	int phy = physical_port[adapter->portnum];
+	int phy = adapter->physical_port;
 	u8 val[8];
 
 	if (addr == NULL)
@@ -604,7 +604,7 @@ int netxen_niu_macaddr_set(struct netxen_adapter *adapter,
 {
 	u8 temp[4];
 	u32 val;
-	int phy = physical_port[adapter->portnum];
+	int phy = adapter->physical_port;
 	unsigned char mac_addr[6];
 	int i;
 	DECLARE_MAC_BUF(mac);
@@ -724,7 +724,7 @@ int netxen_niu_enable_gbe_port(struct netxen_adapter *adapter,
 int netxen_niu_disable_gbe_port(struct netxen_adapter *adapter)
 {
 	__u32 mac_cfg0;
-	u32 port = physical_port[adapter->portnum];
+	u32 port = adapter->physical_port;
 
 	if (port > NETXEN_NIU_MAX_GBE_PORTS)
 		return -EINVAL;
@@ -740,7 +740,7 @@ int netxen_niu_disable_gbe_port(struct netxen_adapter *adapter)
 int netxen_niu_disable_xg_port(struct netxen_adapter *adapter)
 {
 	__u32 mac_cfg;
-	u32 port = physical_port[adapter->portnum];
+	u32 port = adapter->physical_port;
 
 	if (port > NETXEN_NIU_MAX_XG_PORTS)
 		return -EINVAL;
@@ -757,7 +757,7 @@ int netxen_niu_set_promiscuous_mode(struct netxen_adapter *adapter,
 				    netxen_niu_prom_mode_t mode)
 {
 	__u32 reg;
-	u32 port = physical_port[adapter->portnum];
+	u32 port = adapter->physical_port;
 
 	if (port > NETXEN_NIU_MAX_GBE_PORTS)
 		return -EINVAL;
@@ -814,7 +814,7 @@ int netxen_niu_set_promiscuous_mode(struct netxen_adapter *adapter,
 int netxen_niu_xg_macaddr_set(struct netxen_adapter *adapter,
 			      netxen_ethernet_macaddr_t addr)
 {
-	int phy = physical_port[adapter->portnum];
+	int phy = adapter->physical_port;
 	u8 temp[4];
 	u32 val;
 
@@ -867,7 +867,7 @@ int netxen_niu_xg_macaddr_set(struct netxen_adapter *adapter,
 int netxen_niu_xg_macaddr_get(struct netxen_adapter *adapter,
 			      netxen_ethernet_macaddr_t * addr)
 {
-	int phy = physical_port[adapter->portnum];
+	int phy = adapter->physical_port;
 	u32 stationhigh;
 	u32 stationlow;
 	u8 val[8];
@@ -896,7 +896,7 @@ int netxen_niu_xg_set_promiscuous_mode(struct netxen_adapter *adapter,
 				       netxen_niu_prom_mode_t mode)
 {
 	__u32 reg;
-	u32 port = physical_port[adapter->portnum];
+	u32 port = adapter->physical_port;
 
 	if (port > NETXEN_NIU_MAX_XG_PORTS)
 		return -EINVAL;

drivers/net/sky2.c

@@ -118,6 +118,7 @@ static DEFINE_PCI_DEVICE_TABLE(sky2_id_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4355) }, /* 88E8040T */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4357) }, /* 88E8042 */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */

drivers/net/tun.c

@@ -313,6 +313,21 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
 
 	switch (tun->flags & TUN_TYPE_MASK) {
 	case TUN_TUN_DEV:
+		if (tun->flags & TUN_NO_PI) {
+			switch (skb->data[0] & 0xf0) {
+			case 0x40:
+				pi.proto = htons(ETH_P_IP);
+				break;
+			case 0x60:
+				pi.proto = htons(ETH_P_IPV6);
+				break;
+			default:
+				tun->dev->stats.rx_dropped++;
+				kfree_skb(skb);
+				return -EINVAL;
+			}
+		}
+
 		skb_reset_mac_header(skb);
 		skb->protocol = pi.proto;
 		skb->dev = tun->dev;

include/net/netfilter/nf_conntrack_extend.h

@@ -15,6 +15,7 @@ enum nf_ct_ext_id
 
 /* Extensions: optional stuff which isn't permanently in struct. */
 struct nf_ct_ext {
+	struct rcu_head rcu;
 	u8 offset[NF_CT_EXT_NUM];
 	u8 len;
 	char data[0];

net/ipv4/netfilter/nf_nat_core.c

@@ -556,7 +556,6 @@ static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
 
 	spin_lock_bh(&nf_nat_lock);
 	hlist_del_rcu(&nat->bysource);
-	nat->ct = NULL;
 	spin_unlock_bh(&nf_nat_lock);
 }
 
@@ -570,8 +569,8 @@ static void nf_nat_move_storage(void *new, void *old)
 		return;
 
 	spin_lock_bh(&nf_nat_lock);
-	hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
 	new_nat->ct = ct;
+	hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
 	spin_unlock_bh(&nf_nat_lock);
 }
 

net/ipv4/xfrm4_mode_tunnel.c

@@ -52,7 +52,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 		IP_ECN_clear(top_iph);
 
 	top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ?
-			    0 : XFRM_MODE_SKB_CB(skb)->frag_off;
+		0 : (XFRM_MODE_SKB_CB(skb)->frag_off & htons(IP_DF));
 	ip_select_ident(top_iph, dst->child, NULL);
 
 	top_iph->ttl = dst_metric(dst->child, RTAX_HOPLIMIT);

net/mac80211/tx.c

@@ -1567,7 +1567,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	 * make it big enough for everything we may ever need.
 	 */
 
-	if (head_need > 0 || skb_header_cloned(skb)) {
+	if (head_need > 0 || skb_cloned(skb)) {
 		head_need += IEEE80211_ENCRYPT_HEADROOM;
 		head_need += local->tx_headroom;
 		head_need = max_t(int, 0, head_need);

net/netfilter/nf_conntrack_extend.c

@@ -59,12 +59,19 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
 	if (!*ext)
 		return NULL;
 
+	INIT_RCU_HEAD(&(*ext)->rcu);
 	(*ext)->offset[id] = off;
 	(*ext)->len = len;
 
 	return (void *)(*ext) + off;
 }
 
+static void __nf_ct_ext_free_rcu(struct rcu_head *head)
+{
+	struct nf_ct_ext *ext = container_of(head, struct nf_ct_ext, rcu);
+	kfree(ext);
+}
+
 void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
 {
 	struct nf_ct_ext *new;
@@ -104,7 +111,7 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
 					(void *)ct->ext + ct->ext->offset[i]);
 			rcu_read_unlock();
 		}
-		kfree(ct->ext);
+		call_rcu(&ct->ext->rcu, __nf_ct_ext_free_rcu);
 		ct->ext = new;
 	}
 

net/netfilter/nf_conntrack_h323_main.c

@@ -619,6 +619,7 @@ static const struct nf_conntrack_expect_policy h245_exp_policy = {
 static struct nf_conntrack_helper nf_conntrack_helper_h245 __read_mostly = {
 	.name			= "H.245",
 	.me			= THIS_MODULE,
+	.tuple.src.l3num	= AF_UNSPEC,
 	.tuple.dst.protonum	= IPPROTO_UDP,
 	.help			= h245_help,
 	.expect_policy		= &h245_exp_policy,
@@ -1765,6 +1766,7 @@ static void __exit nf_conntrack_h323_fini(void)
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+	nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
 	kfree(h323_buffer);
 	pr_debug("nf_ct_h323: fini\n");
 }
@@ -1777,28 +1779,34 @@ static int __init nf_conntrack_h323_init(void)
 	h323_buffer = kmalloc(65536, GFP_KERNEL);
 	if (!h323_buffer)
 		return -ENOMEM;
-	ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
+	ret = nf_conntrack_helper_register(&nf_conntrack_helper_h245);
 	if (ret < 0)
 		goto err1;
-	ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
+	ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
 	if (ret < 0)
 		goto err2;
-	ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
+	ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
 	if (ret < 0)
 		goto err3;
-	ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+	ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
 	if (ret < 0)
 		goto err4;
+	ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+	if (ret < 0)
+		goto err5;
 	pr_debug("nf_ct_h323: init success\n");
 	return 0;
 
-err4:
+err5:
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
-err3:
+err4:
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
-err2:
+err3:
 	nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+err2:
+	nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
 err1:
+	kfree(h323_buffer);
 	return ret;
 }
 

net/netlink/genetlink.c

@@ -444,8 +444,11 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		if (ops->dumpit == NULL)
 			return -EOPNOTSUPP;
 
-		return netlink_dump_start(genl_sock, skb, nlh,
+		genl_unlock();
-					  ops->dumpit, ops->done);
+		err = netlink_dump_start(genl_sock, skb, nlh,
+					 ops->dumpit, ops->done);
+		genl_lock();
+		return err;
 	}
 
 	if (ops->doit == NULL)
@@ -603,9 +606,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
 	int chains_to_skip = cb->args[0];
 	int fams_to_skip = cb->args[1];
 
-	if (chains_to_skip != 0)
-		genl_lock();
-
 	for (i = 0; i < GENL_FAM_TAB_SIZE; i++) {
 		if (i < chains_to_skip)
 			continue;
@@ -623,9 +623,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
 	}
 
 errout:
-	if (chains_to_skip != 0)
-		genl_unlock();
-
 	cb->args[0] = i;
 	cb->args[1] = n;
 
@@ -770,7 +767,7 @@ static int __init genl_init(void)
 
 	/* we'll bump the group number right afterwards */
 	genl_sock = netlink_kernel_create(&init_net, NETLINK_GENERIC, 0,
-					  genl_rcv, NULL, THIS_MODULE);
+					  genl_rcv, &genl_mutex, THIS_MODULE);
 	if (genl_sock == NULL)
 		panic("GENL: Cannot initialize generic netlink\n");
 

net/unix/af_unix.c

@@ -167,6 +167,11 @@ static inline int unix_may_send(struct sock *sk, struct sock *osk)
 	return (unix_peer(osk) == NULL || unix_our_peer(sk, osk));
 }
 
+static inline int unix_recvq_full(struct sock const *sk)
+{
+	return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
+}
+
 static struct sock *unix_peer_get(struct sock *s)
 {
 	struct sock *peer;
@@ -480,6 +485,8 @@ static int unix_socketpair(struct socket *, struct socket *);
 static int unix_accept(struct socket *, struct socket *, int);
 static int unix_getname(struct socket *, struct sockaddr *, int *, int);
 static unsigned int unix_poll(struct file *, struct socket *, poll_table *);
+static unsigned int unix_datagram_poll(struct file *, struct socket *,
+				       poll_table *);
 static int unix_ioctl(struct socket *, unsigned int, unsigned long);
 static int unix_shutdown(struct socket *, int);
 static int unix_stream_sendmsg(struct kiocb *, struct socket *,
@@ -525,7 +532,7 @@ static const struct proto_ops unix_dgram_ops = {
 	.socketpair =	unix_socketpair,
 	.accept =	sock_no_accept,
 	.getname =	unix_getname,
-	.poll =		datagram_poll,
+	.poll =		unix_datagram_poll,
 	.ioctl =	unix_ioctl,
 	.listen =	sock_no_listen,
 	.shutdown =	unix_shutdown,
@@ -546,7 +553,7 @@ static const struct proto_ops unix_seqpacket_ops = {
 	.socketpair =	unix_socketpair,
 	.accept =	unix_accept,
 	.getname =	unix_getname,
-	.poll =		datagram_poll,
+	.poll =		unix_datagram_poll,
 	.ioctl =	unix_ioctl,
 	.listen =	unix_listen,
 	.shutdown =	unix_shutdown,
@@ -981,8 +988,7 @@ static long unix_wait_for_peer(struct sock *other, long timeo)
 
 	sched = !sock_flag(other, SOCK_DEAD) &&
 		!(other->sk_shutdown & RCV_SHUTDOWN) &&
-		(skb_queue_len(&other->sk_receive_queue) >
+		unix_recvq_full(other);
-		 other->sk_max_ack_backlog);
 
 	unix_state_unlock(other);
 
@@ -1056,8 +1062,7 @@ restart:
 	if (other->sk_state != TCP_LISTEN)
 		goto out_unlock;
 
-	if (skb_queue_len(&other->sk_receive_queue) >
+	if (unix_recvq_full(other)) {
-	    other->sk_max_ack_backlog) {
 		err = -EAGAIN;
 		if (!timeo)
 			goto out_unlock;
@@ -1426,9 +1431,7 @@ restart:
 			goto out_unlock;
 	}
 
-	if (unix_peer(other) != sk &&
+	if (unix_peer(other) != sk && unix_recvq_full(other)) {
-	    (skb_queue_len(&other->sk_receive_queue) >
-	     other->sk_max_ack_backlog)) {
 		if (!timeo) {
 			err = -EAGAIN;
 			goto out_unlock;
@@ -1989,6 +1992,64 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
 	return mask;
 }
 
+static unsigned int unix_datagram_poll(struct file *file, struct socket *sock,
+				       poll_table *wait)
+{
+	struct sock *sk = sock->sk, *peer;
+	unsigned int mask;
+
+	poll_wait(file, sk->sk_sleep, wait);
+
+	peer = unix_peer_get(sk);
+	if (peer) {
+		if (peer != sk) {
+			/*
+			 * Writability of a connected socket additionally
+			 * depends on the state of the receive queue of the
+			 * peer.
+			 */
+			poll_wait(file, &unix_sk(peer)->peer_wait, wait);
+		} else {
+			sock_put(peer);
+			peer = NULL;
+		}
+	}
+
+	mask = 0;
+
+	/* exceptional events? */
+	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
+		mask |= POLLERR;
+	if (sk->sk_shutdown & RCV_SHUTDOWN)
+		mask |= POLLRDHUP;
+	if (sk->sk_shutdown == SHUTDOWN_MASK)
+		mask |= POLLHUP;
+
+	/* readable? */
+	if (!skb_queue_empty(&sk->sk_receive_queue) ||
+	    (sk->sk_shutdown & RCV_SHUTDOWN))
+		mask |= POLLIN | POLLRDNORM;
+
+	/* Connection-based need to check for termination and startup */
+	if (sk->sk_type == SOCK_SEQPACKET) {
+		if (sk->sk_state == TCP_CLOSE)
+			mask |= POLLHUP;
+		/* connection hasn't started yet? */
+		if (sk->sk_state == TCP_SYN_SENT)
+			return mask;
+	}
+
+	/* writable? */
+	if (unix_writable(sk) && !(peer && unix_recvq_full(peer)))
+		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+	else
+		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+	if (peer)
+		sock_put(peer);
+
+	return mask;
+}
 
 #ifdef CONFIG_PROC_FS
 static struct sock *first_unix_socket(int *i)