Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  igb: remove sysfs entry that was used to set the number of vfs
  igbvf: add new driver to support 82576 virtual functions
  drivers/net/eql.c: Fix a dev leakage.
  niu: Fix unused variable warning.
  r6040: set MODULE_VERSION
  bnx2: Don't use reserved names
  FEC driver: add missing #endif
  niu: Fix error handling
  mv643xx_eth: don't reset the rx coal timer on interface up
  smsc911x: correct debugging message on mii read timeout
  ethoc: fix library build errors
  netfilter: ctnetlink: fix regression in expectation handling
  netfilter: fix selection of "LED" target in netfilter
  netfilter: ip6tables regression fix

drivers/net/Kconfig

@@ -977,6 +977,8 @@ config ETHOC
 	depends on NET_ETHERNET && HAS_IOMEM
 	select MII
 	select PHYLIB
+	select CRC32
+	select BITREVERSE
 	help
 	  Say Y here if you want to use the OpenCores 10/100 Mbps Ethernet MAC.
 
@@ -2056,6 +2058,27 @@ config IGB_DCA
 	  driver.  DCA is a method for warming the CPU cache before data
 	  is used, with the intent of lessening the impact of cache misses.
 
+config IGBVF
+       tristate "Intel(R) 82576 Virtual Function Ethernet support"
+       depends on PCI
+       ---help---
+         This driver supports Intel(R) 82576 virtual functions.  For more
+         information on how to identify your adapter, go to the Adapter &
+         Driver ID Guide at:
+
+         <http://support.intel.com/support/network/adapter/pro100/21397.htm>
+
+         For general information and support, go to the Intel support
+         website at:
+
+         <http://support.intel.com>
+
+         More specific information on configuring the driver is in
+         <file:Documentation/networking/e1000.txt>.
+
+         To compile this driver as a module, choose M here. The module
+         will be called igbvf.
+
 source "drivers/net/ixp2000/Kconfig"
 
 config MYRI_SBUS

drivers/net/Makefile

@@ -6,6 +6,7 @@ obj-$(CONFIG_E1000) += e1000/
 obj-$(CONFIG_E1000E) += e1000e/
 obj-$(CONFIG_IBM_NEW_EMAC) += ibm_newemac/
 obj-$(CONFIG_IGB) += igb/
+obj-$(CONFIG_IGBVF) += igbvf/
 obj-$(CONFIG_IXGBE) += ixgbe/
 obj-$(CONFIG_IXGB) += ixgb/
 obj-$(CONFIG_IP1000) += ipg.o

drivers/net/bnx2.c

@@ -3427,8 +3427,8 @@ static int __devinit
 bnx2_request_firmware(struct bnx2 *bp)
 {
 	const char *mips_fw_file, *rv2p_fw_file;
-	const struct bnx2_mips_fw_file *mips;
-	const struct bnx2_rv2p_fw_file *rv2p;
+	const struct bnx2_mips_fw_file *mips_fw;
+	const struct bnx2_rv2p_fw_file *rv2p_fw;
 	int rc;
 
 	if (CHIP_NUM(bp) == CHIP_NUM_5709) {
@@ -3452,21 +3452,21 @@ bnx2_request_firmware(struct bnx2 *bp)
 		       rv2p_fw_file);
 		return rc;
 	}
-	mips = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
-	rv2p = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
-	if (bp->mips_firmware->size < sizeof(*mips) ||
-	    check_mips_fw_entry(bp->mips_firmware, &mips->com) ||
-	    check_mips_fw_entry(bp->mips_firmware, &mips->cp) ||
-	    check_mips_fw_entry(bp->mips_firmware, &mips->rxp) ||
-	    check_mips_fw_entry(bp->mips_firmware, &mips->tpat) ||
-	    check_mips_fw_entry(bp->mips_firmware, &mips->txp)) {
+	mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
+	rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
+	if (bp->mips_firmware->size < sizeof(*mips_fw) ||
+	    check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||
+	    check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||
+	    check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||
+	    check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||
+	    check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {
 		printk(KERN_ERR PFX "Firmware file \"%s\" is invalid\n",
 		       mips_fw_file);
 		return -EINVAL;
 	}
-	if (bp->rv2p_firmware->size < sizeof(*rv2p) ||
-	    check_fw_section(bp->rv2p_firmware, &rv2p->proc1.rv2p, 8, true) ||
-	    check_fw_section(bp->rv2p_firmware, &rv2p->proc2.rv2p, 8, true)) {
+	if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||
+	    check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||
+	    check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {
 		printk(KERN_ERR PFX "Firmware file \"%s\" is invalid\n",
 		       rv2p_fw_file);
 		return -EINVAL;

drivers/net/eql.c

@@ -542,6 +542,8 @@ static int eql_s_slave_cfg(struct net_device *dev, slave_config_t __user *scp)
 	}
 	spin_unlock_bh(&eql->queue.lock);
 
+	dev_put(slave_dev);
+
 	return ret;
 }
 

drivers/net/fec.c

@@ -1240,6 +1240,7 @@ static void __inline__ fec_phy_ack_intr(void)
 	icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
 	*icrp = 0x0d000000;
 }
+#endif
 
 #ifdef CONFIG_M5272
 static void __inline__ fec_get_mac(struct net_device *dev)

drivers/net/igb/igb_main.c

@@ -152,14 +152,13 @@ static struct notifier_block dca_notifier = {
 /* for netdump / net console */
 static void igb_netpoll(struct net_device *);
 #endif
-
 #ifdef CONFIG_PCI_IOV
-static ssize_t igb_set_num_vfs(struct device *, struct device_attribute *,
-                               const char *, size_t);
-static ssize_t igb_show_num_vfs(struct device *, struct device_attribute *,
-                               char *);
-DEVICE_ATTR(num_vfs, S_IRUGO | S_IWUSR, igb_show_num_vfs, igb_set_num_vfs);
-#endif
+static unsigned int max_vfs = 0;
+module_param(max_vfs, uint, 0);
+MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate "
+                 "per physical function");
+#endif /* CONFIG_PCI_IOV */
+
 static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
 		     pci_channel_state_t);
 static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
@@ -671,6 +670,21 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter)
 
 	/* If we can't do MSI-X, try MSI */
 msi_only:
+#ifdef CONFIG_PCI_IOV
+	/* disable SR-IOV for non MSI-X configurations */
+	if (adapter->vf_data) {
+		struct e1000_hw *hw = &adapter->hw;
+		/* disable iov and allow time for transactions to clear */
+		pci_disable_sriov(adapter->pdev);
+		msleep(500);
+
+		kfree(adapter->vf_data);
+		adapter->vf_data = NULL;
+		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+		msleep(100);
+		dev_info(&adapter->pdev->dev, "IOV Disabled\n");
+	}
+#endif
 	adapter->num_rx_queues = 1;
 	adapter->num_tx_queues = 1;
 	if (!pci_enable_msi(adapter->pdev))
@@ -1238,6 +1252,39 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_sw_init;
 
+#ifdef CONFIG_PCI_IOV
+	/* since iov functionality isn't critical to base device function we
+	 * can accept failure.  If it fails we don't allow iov to be enabled */
+	if (hw->mac.type == e1000_82576) {
+		/* 82576 supports a maximum of 7 VFs in addition to the PF */
+		unsigned int num_vfs = (max_vfs > 7) ? 7 : max_vfs;
+		int i;
+		unsigned char mac_addr[ETH_ALEN];
+
+		if (num_vfs)
+			adapter->vf_data = kcalloc(num_vfs,
+						sizeof(struct vf_data_storage),
+						GFP_KERNEL);
+		if (!adapter->vf_data) {
+			dev_err(&pdev->dev, "Could not allocate VF private "
+				"data - IOV enable failed\n");
+		} else {
+			err = pci_enable_sriov(pdev, num_vfs);
+			if (!err) {
+				adapter->vfs_allocated_count = num_vfs;
+				dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
+				for (i = 0; i < adapter->vfs_allocated_count; i++) {
+					random_ether_addr(mac_addr);
+					igb_set_vf_mac(adapter, i, mac_addr);
+				}
+			} else {
+				kfree(adapter->vf_data);
+				adapter->vf_data = NULL;
+			}
+		}
+	}
+
+#endif
 	/* setup the private structure */
 	err = igb_sw_init(adapter);
 	if (err)
@@ -1397,19 +1444,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_register;
 
-#ifdef CONFIG_PCI_IOV
-	/* since iov functionality isn't critical to base device function we
-	 * can accept failure.  If it fails we don't allow iov to be enabled */
-	if (hw->mac.type == e1000_82576) {
-		err = pci_enable_sriov(pdev, 0);
-		if (!err)
-			err = device_create_file(&netdev->dev,
-			                         &dev_attr_num_vfs);
-		if (err)
-			dev_err(&pdev->dev, "Failed to initialize IOV\n");
-	}
-
-#endif
 #ifdef CONFIG_IGB_DCA
 	if (dca_add_requester(&pdev->dev) == 0) {
 		adapter->flags |= IGB_FLAG_DCA_ENABLED;
@@ -5422,89 +5456,4 @@ static void igb_vmm_control(struct igb_adapter *adapter)
 	igb_vmdq_set_replication_pf(hw, true);
 }
 
-#ifdef CONFIG_PCI_IOV
-static ssize_t igb_show_num_vfs(struct device *dev,
-                                struct device_attribute *attr, char *buf)
-{
-	struct igb_adapter *adapter = netdev_priv(to_net_dev(dev));
-
-	return sprintf(buf, "%d\n", adapter->vfs_allocated_count);
-}
-
-static ssize_t igb_set_num_vfs(struct device *dev,
-                               struct device_attribute *attr,
-                               const char *buf, size_t count)
-{
-	struct net_device *netdev = to_net_dev(dev);
-	struct igb_adapter *adapter = netdev_priv(netdev);
-	struct e1000_hw *hw = &adapter->hw;
-	struct pci_dev *pdev = adapter->pdev;
-	unsigned int num_vfs, i;
-	unsigned char mac_addr[ETH_ALEN];
-	int err;
-
-	sscanf(buf, "%u", &num_vfs);
-
-	if (num_vfs > 7)
-		num_vfs = 7;
-
-	/* value unchanged do nothing */
-	if (num_vfs == adapter->vfs_allocated_count)
-		return count;
-
-	if (netdev->flags & IFF_UP)
-		igb_close(netdev);
-
-	igb_reset_interrupt_capability(adapter);
-	igb_free_queues(adapter);
-	adapter->tx_ring = NULL;
-	adapter->rx_ring = NULL;
-	adapter->vfs_allocated_count = 0;
-
-	/* reclaim resources allocated to VFs since we are changing count */
-	if (adapter->vf_data) {
-		/* disable iov and allow time for transactions to clear */
-		pci_disable_sriov(pdev);
-		msleep(500);
-
-		kfree(adapter->vf_data);
-		adapter->vf_data = NULL;
-		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
-		msleep(100);
-		dev_info(&pdev->dev, "IOV Disabled\n");
-	}
-
-	if (num_vfs) {
-		adapter->vf_data = kcalloc(num_vfs,
-		                           sizeof(struct vf_data_storage),
-		                           GFP_KERNEL);
-		if (!adapter->vf_data) {
-			dev_err(&pdev->dev, "Could not allocate VF private "
-				"data - IOV enable failed\n");
-		} else {
-			err = pci_enable_sriov(pdev, num_vfs);
-			if (!err) {
-				adapter->vfs_allocated_count = num_vfs;
-				dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
-				for (i = 0; i < adapter->vfs_allocated_count; i++) {
-					random_ether_addr(mac_addr);
-					igb_set_vf_mac(adapter, i, mac_addr);
-				}
-			} else {
-				kfree(adapter->vf_data);
-				adapter->vf_data = NULL;
-			}
-		}
-	}
-
-	igb_set_interrupt_capability(adapter);
-	igb_alloc_queues(adapter);
-	igb_reset(adapter);
-
-	if (netdev->flags & IFF_UP)
-		igb_open(netdev);
-
-	return count;
-}
-#endif /* CONFIG_PCI_IOV */
 /* igb_main.c */

drivers/net/igbvf/Makefile

+################################################################################
+#
+# Intel(R) 82576 Virtual Function Linux driver
+# Copyright(c) 2009 Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+# Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+#
+################################################################################
+
+#
+# Makefile for the Intel(R) 82576 VF ethernet driver
+#
+
+obj-$(CONFIG_IGBVF) += igbvf.o
+
+igbvf-objs := vf.o \
+              mbx.o \
+              ethtool.o \
+              netdev.o
+

drivers/net/igbvf/defines.h

+/*******************************************************************************
+
+  Intel(R) 82576 Virtual Function Linux driver
+  Copyright(c) 1999 - 2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_DEFINES_H_
+#define _E1000_DEFINES_H_
+
+/* Number of Transmit and Receive Descriptors must be a multiple of 8 */
+#define REQ_TX_DESCRIPTOR_MULTIPLE  8
+#define REQ_RX_DESCRIPTOR_MULTIPLE  8
+
+/* IVAR valid bit */
+#define E1000_IVAR_VALID        0x80
+
+/* Receive Descriptor bit definitions */
+#define E1000_RXD_STAT_DD       0x01    /* Descriptor Done */
+#define E1000_RXD_STAT_EOP      0x02    /* End of Packet */
+#define E1000_RXD_STAT_IXSM     0x04    /* Ignore checksum */
+#define E1000_RXD_STAT_VP       0x08    /* IEEE VLAN Packet */
+#define E1000_RXD_STAT_UDPCS    0x10    /* UDP xsum calculated */
+#define E1000_RXD_STAT_TCPCS    0x20    /* TCP xsum calculated */
+#define E1000_RXD_STAT_IPCS     0x40    /* IP xsum calculated */
+#define E1000_RXD_ERR_SE        0x02    /* Symbol Error */
+#define E1000_RXD_SPC_VLAN_MASK 0x0FFF  /* VLAN ID is in lower 12 bits */
+
+#define E1000_RXDEXT_STATERR_CE    0x01000000
+#define E1000_RXDEXT_STATERR_SE    0x02000000
+#define E1000_RXDEXT_STATERR_SEQ   0x04000000
+#define E1000_RXDEXT_STATERR_CXE   0x10000000
+#define E1000_RXDEXT_STATERR_TCPE  0x20000000
+#define E1000_RXDEXT_STATERR_IPE   0x40000000
+#define E1000_RXDEXT_STATERR_RXE   0x80000000
+
+
+/* Same mask, but for extended and packet split descriptors */
+#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \
+    E1000_RXDEXT_STATERR_CE  |            \
+    E1000_RXDEXT_STATERR_SE  |            \
+    E1000_RXDEXT_STATERR_SEQ |            \
+    E1000_RXDEXT_STATERR_CXE |            \
+    E1000_RXDEXT_STATERR_RXE)
+
+/* Device Control */
+#define E1000_CTRL_RST      0x04000000  /* Global reset */
+
+/* Device Status */
+#define E1000_STATUS_FD         0x00000001      /* Full duplex.0=half,1=full */
+#define E1000_STATUS_LU         0x00000002      /* Link up.0=no,1=link */
+#define E1000_STATUS_TXOFF      0x00000010      /* transmission paused */
+#define E1000_STATUS_SPEED_10   0x00000000      /* Speed 10Mb/s */
+#define E1000_STATUS_SPEED_100  0x00000040      /* Speed 100Mb/s */
+#define E1000_STATUS_SPEED_1000 0x00000080      /* Speed 1000Mb/s */
+
+#define SPEED_10    10
+#define SPEED_100   100
+#define SPEED_1000  1000
+#define HALF_DUPLEX 1
+#define FULL_DUPLEX 2
+
+/* Transmit Descriptor bit definitions */
+#define E1000_TXD_POPTS_IXSM 0x01       /* Insert IP checksum */
+#define E1000_TXD_POPTS_TXSM 0x02       /* Insert TCP/UDP checksum */
+#define E1000_TXD_CMD_DEXT   0x20000000 /* Descriptor extension (0 = legacy) */
+#define E1000_TXD_STAT_DD    0x00000001 /* Descriptor Done */
+
+#define MAX_JUMBO_FRAME_SIZE    0x3F00
+
+/* 802.1q VLAN Packet Size */
+#define VLAN_TAG_SIZE              4    /* 802.3ac tag (not DMA'd) */
+
+/* Error Codes */
+#define E1000_SUCCESS      0
+#define E1000_ERR_CONFIG   3
+#define E1000_ERR_MAC_INIT 5
+#define E1000_ERR_MBX      15
+
+#ifndef ETH_ADDR_LEN
+#define ETH_ADDR_LEN                 6
+#endif
+
+/* SRRCTL bit definitions */
+#define E1000_SRRCTL_BSIZEPKT_SHIFT                     10 /* Shift _right_ */
+#define E1000_SRRCTL_BSIZEHDRSIZE_MASK                  0x00000F00
+#define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT                 2  /* Shift _left_ */
+#define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF                0x02000000
+#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS          0x0A000000
+#define E1000_SRRCTL_DESCTYPE_MASK                      0x0E000000
+#define E1000_SRRCTL_DROP_EN                            0x80000000
+
+#define E1000_SRRCTL_BSIZEPKT_MASK      0x0000007F
+#define E1000_SRRCTL_BSIZEHDR_MASK      0x00003F00
+
+/* Additional Descriptor Control definitions */
+#define E1000_TXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Tx Queue */
+#define E1000_RXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Rx Queue */
+
+/* Direct Cache Access (DCA) definitions */
+#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* Tx Desc writeback RO bit */
+
+#define E1000_VF_INIT_TIMEOUT 200 /* Number of retries to clear RSTI */
+
+#endif /* _E1000_DEFINES_H_ */

drivers/net/igbvf/igbvf.h

+/*******************************************************************************
+
+  Intel(R) 82576 Virtual Function Linux driver
+  Copyright(c) 2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+/* Linux PRO/1000 Ethernet Driver main header file */
+
+#ifndef _IGBVF_H_
+#define _IGBVF_H_
+
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/io.h>
+#include <linux/netdevice.h>
+
+
+#include "vf.h"
+
+/* Forward declarations */
+struct igbvf_info;
+struct igbvf_adapter;
+
+/* Interrupt defines */
+#define IGBVF_START_ITR                 648 /* ~6000 ints/sec */
+
+/* Interrupt modes, as used by the IntMode paramter */
+#define IGBVF_INT_MODE_LEGACY           0
+#define IGBVF_INT_MODE_MSI              1
+#define IGBVF_INT_MODE_MSIX             2
+
+/* Tx/Rx descriptor defines */
+#define IGBVF_DEFAULT_TXD               256
+#define IGBVF_MAX_TXD                   4096
+#define IGBVF_MIN_TXD                   80
+
+#define IGBVF_DEFAULT_RXD               256
+#define IGBVF_MAX_RXD                   4096
+#define IGBVF_MIN_RXD                   80
+
+#define IGBVF_MIN_ITR_USECS             10 /* 100000 irq/sec */
+#define IGBVF_MAX_ITR_USECS             10000 /* 100    irq/sec */
+
+/* RX descriptor control thresholds.
+ * PTHRESH - MAC will consider prefetch if it has fewer than this number of
+ *           descriptors available in its onboard memory.
+ *           Setting this to 0 disables RX descriptor prefetch.
+ * HTHRESH - MAC will only prefetch if there are at least this many descriptors
+ *           available in host memory.
+ *           If PTHRESH is 0, this should also be 0.
+ * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back
+ *           descriptors until either it has this many to write back, or the
+ *           ITR timer expires.
+ */
+#define IGBVF_RX_PTHRESH                16
+#define IGBVF_RX_HTHRESH                8
+#define IGBVF_RX_WTHRESH                1
+
+/* this is the size past which hardware will drop packets when setting LPE=0 */
+#define MAXIMUM_ETHERNET_VLAN_SIZE      1522
+
+#define IGBVF_FC_PAUSE_TIME             0x0680 /* 858 usec */
+
+/* How many Tx Descriptors do we need to call netif_wake_queue ? */
+#define IGBVF_TX_QUEUE_WAKE             32
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IGBVF_RX_BUFFER_WRITE           16 /* Must be power of 2 */
+
+#define AUTO_ALL_MODES                  0
+#define IGBVF_EEPROM_APME               0x0400
+
+#define IGBVF_MNG_VLAN_NONE             (-1)
+
+/* Number of packet split data buffers (not including the header buffer) */
+#define PS_PAGE_BUFFERS                 (MAX_PS_BUFFERS - 1)
+
+enum igbvf_boards {
+	board_vf,
+};
+
+struct igbvf_queue_stats {
+	u64 packets;
+	u64 bytes;
+};
+
+/*
+ * wrappers around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer
+ */
+struct igbvf_buffer {
+	dma_addr_t dma;
+	struct sk_buff *skb;
+	union {
+		/* Tx */
+		struct {
+			unsigned long time_stamp;
+			u16 length;
+			u16 next_to_watch;
+		};
+		/* Rx */
+		struct {
+			struct page *page;
+			u64 page_dma;
+			unsigned int page_offset;
+		};
+	};
+	struct page *page;
+};
+
+union igbvf_desc {
+	union e1000_adv_rx_desc rx_desc;
+	union e1000_adv_tx_desc tx_desc;
+	struct e1000_adv_tx_context_desc tx_context_desc;
+};
+
+struct igbvf_ring {
+	struct igbvf_adapter *adapter;  /* backlink */
+	union igbvf_desc *desc;         /* pointer to ring memory  */
+	dma_addr_t dma;                 /* phys address of ring    */
+	unsigned int size;              /* length of ring in bytes */
+	unsigned int count;             /* number of desc. in ring */
+
+	u16 next_to_use;
+	u16 next_to_clean;
+
+	u16 head;
+	u16 tail;
+
+	/* array of buffer information structs */
+	struct igbvf_buffer *buffer_info;
+	struct napi_struct napi;
+
+	char name[IFNAMSIZ + 5];
+	u32 eims_value;
+	u32 itr_val;
+	u16 itr_register;
+	int set_itr;
+
+	struct sk_buff *rx_skb_top;
+
+	struct igbvf_queue_stats stats;
+};
+
+/* board specific private data structure */
+struct igbvf_adapter {
+	struct timer_list watchdog_timer;
+	struct timer_list blink_timer;
+
+	struct work_struct reset_task;
+	struct work_struct watchdog_task;
+
+	const struct igbvf_info *ei;
+
+	struct vlan_group *vlgrp;
+	u32 bd_number;
+	u32 rx_buffer_len;
+	u32 polling_interval;
+	u16 mng_vlan_id;
+	u16 link_speed;
+	u16 link_duplex;
+
+	spinlock_t tx_queue_lock; /* prevent concurrent tail updates */
+
+	/* track device up/down/testing state */
+	unsigned long state;
+
+	/* Interrupt Throttle Rate */
+	u32 itr;
+	u32 itr_setting;
+	u16 tx_itr;
+	u16 rx_itr;
+
+	/*
+	 * Tx
+	 */
+	struct igbvf_ring *tx_ring /* One per active queue */
+	____cacheline_aligned_in_smp;
+
+	unsigned long tx_queue_len;
+	unsigned int restart_queue;
+	u32 txd_cmd;
+
+	bool detect_tx_hung;
+	u8 tx_timeout_factor;
+
+	u32 tx_int_delay;
+	u32 tx_abs_int_delay;
+
+	unsigned int total_tx_bytes;
+	unsigned int total_tx_packets;
+	unsigned int total_rx_bytes;
+	unsigned int total_rx_packets;
+
+	/* Tx stats */
+	u32 tx_timeout_count;
+	u32 tx_fifo_head;
+	u32 tx_head_addr;
+	u32 tx_fifo_size;
+	u32 tx_dma_failed;
+
+	/*
+	 * Rx
+	 */
+	struct igbvf_ring *rx_ring;
+
+	u32 rx_int_delay;
+	u32 rx_abs_int_delay;
+
+	/* Rx stats */
+	u64 hw_csum_err;
+	u64 hw_csum_good;
+	u64 rx_hdr_split;
+	u32 alloc_rx_buff_failed;
+	u32 rx_dma_failed;
+
+	unsigned int rx_ps_hdr_size;
+	u32 max_frame_size;
+	u32 min_frame_size;
+
+	/* OS defined structs */
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	struct net_device_stats net_stats;
+	spinlock_t stats_lock;      /* prevent concurrent stats updates */
+
+	/* structs defined in e1000_hw.h */
+	struct e1000_hw hw;
+
+	/* The VF counters don't clear on read so we have to get a base
+	 * count on driver start up and always subtract that base on
+	 * on the first update, thus the flag..
+	 */
+	struct e1000_vf_stats stats;
+	u64 zero_base;
+
+	struct igbvf_ring test_tx_ring;
+	struct igbvf_ring test_rx_ring;
+	u32 test_icr;
+
+	u32 msg_enable;
+	struct msix_entry *msix_entries;
+	int int_mode;
+	u32 eims_enable_mask;
+	u32 eims_other;
+	u32 int_counter0;
+	u32 int_counter1;
+
+	u32 eeprom_wol;
+	u32 wol;
+	u32 pba;
+
+	bool fc_autoneg;
+
+	unsigned long led_status;
+
+	unsigned int flags;
+};
+
+struct igbvf_info {
+	enum e1000_mac_type     mac;
+	unsigned int            flags;
+	u32                     pba;
+	void                    (*init_ops)(struct e1000_hw *);
+	s32                     (*get_variants)(struct igbvf_adapter *);
+};
+
+/* hardware capability, feature, and workaround flags */
+#define FLAG_HAS_HW_VLAN_FILTER           (1 << 0)
+#define FLAG_HAS_JUMBO_FRAMES             (1 << 1)
+#define FLAG_MSI_ENABLED                  (1 << 2)
+#define FLAG_RX_CSUM_ENABLED              (1 << 3)
+#define FLAG_TSO_FORCE                    (1 << 4)
+
+#define IGBVF_RX_DESC_ADV(R, i)     \
+	(&((((R).desc))[i].rx_desc))
+#define IGBVF_TX_DESC_ADV(R, i)     \
+	(&((((R).desc))[i].tx_desc))
+#define IGBVF_TX_CTXTDESC_ADV(R, i) \
+	(&((((R).desc))[i].tx_context_desc))
+
+enum igbvf_state_t {
+	__IGBVF_TESTING,
+	__IGBVF_RESETTING,
+	__IGBVF_DOWN
+};
+
+enum latency_range {
+	lowest_latency = 0,
+	low_latency = 1,
+	bulk_latency = 2,
+	latency_invalid = 255
+};
+
+extern char igbvf_driver_name[];
+extern const char igbvf_driver_version[];
+
+extern void igbvf_check_options(struct igbvf_adapter *);
+extern void igbvf_set_ethtool_ops(struct net_device *);
+
+extern int igbvf_up(struct igbvf_adapter *);
+extern void igbvf_down(struct igbvf_adapter *);
+extern void igbvf_reinit_locked(struct igbvf_adapter *);
+extern void igbvf_reset(struct igbvf_adapter *);
+extern int igbvf_setup_rx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+extern int igbvf_setup_tx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+extern void igbvf_free_rx_resources(struct igbvf_ring *);
+extern void igbvf_free_tx_resources(struct igbvf_ring *);
+extern void igbvf_update_stats(struct igbvf_adapter *);
+extern void igbvf_set_interrupt_capability(struct igbvf_adapter *);
+extern void igbvf_reset_interrupt_capability(struct igbvf_adapter *);
+
+extern unsigned int copybreak;
+
+#endif /* _IGBVF_H_ */

drivers/net/igbvf/mbx.c

+/*******************************************************************************
+
+  Intel(R) 82576 Virtual Function Linux driver
+  Copyright(c) 2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include "mbx.h"
+
+/**
+ *  e1000_poll_for_msg - Wait for message notification
+ *  @hw: pointer to the HW structure
+ *
+ *  returns SUCCESS if it successfully received a message notification
+ **/
+static s32 e1000_poll_for_msg(struct e1000_hw *hw)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	int countdown = mbx->timeout;
+
+	if (!mbx->ops.check_for_msg)
+		goto out;
+
+	while (countdown && mbx->ops.check_for_msg(hw)) {
+		countdown--;
+		udelay(mbx->usec_delay);
+	}
+
+	/* if we failed, all future posted messages fail until reset */
+	if (!countdown)
+		mbx->timeout = 0;
+out:
+	return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ *  e1000_poll_for_ack - Wait for message acknowledgement
+ *  @hw: pointer to the HW structure
+ *
+ *  returns SUCCESS if it successfully received a message acknowledgement
+ **/
+static s32 e1000_poll_for_ack(struct e1000_hw *hw)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	int countdown = mbx->timeout;
+
+	if (!mbx->ops.check_for_ack)
+		goto out;
+
+	while (countdown && mbx->ops.check_for_ack(hw)) {
+		countdown--;
+		udelay(mbx->usec_delay);
+	}
+
+	/* if we failed, all future posted messages fail until reset */
+	if (!countdown)
+		mbx->timeout = 0;
+out:
+	return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ *  e1000_read_posted_mbx - Wait for message notification and receive message
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  returns SUCCESS if it successfully received a message notification and
+ *  copied it into the receive buffer.
+ **/
+static s32 e1000_read_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!mbx->ops.read)
+		goto out;
+
+	ret_val = e1000_poll_for_msg(hw);
+
+	/* if ack received read message, otherwise we timed out */
+	if (!ret_val)
+		ret_val = mbx->ops.read(hw, msg, size);
+out:
+	return ret_val;
+}
+
+/**
+ *  e1000_write_posted_mbx - Write a message to the mailbox, wait for ack
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  returns SUCCESS if it successfully copied message into the buffer and
+ *  received an ack to that message within delay * timeout period
+ **/
+static s32 e1000_write_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	/* exit if we either can't write or there isn't a defined timeout */
+	if (!mbx->ops.write || !mbx->timeout)
+		goto out;
+
+	/* send msg*/
+	ret_val = mbx->ops.write(hw, msg, size);
+
+	/* if msg sent wait until we receive an ack */
+	if (!ret_val)
+		ret_val = e1000_poll_for_ack(hw);
+out:
+	return ret_val;
+}
+
+/**
+ *  e1000_read_v2p_mailbox - read v2p mailbox
+ *  @hw: pointer to the HW structure
+ *
+ *  This function is used to read the v2p mailbox without losing the read to
+ *  clear status bits.
+ **/
+static u32 e1000_read_v2p_mailbox(struct e1000_hw *hw)
+{
+	u32 v2p_mailbox = er32(V2PMAILBOX(0));
+
+	v2p_mailbox |= hw->dev_spec.vf.v2p_mailbox;
+	hw->dev_spec.vf.v2p_mailbox |= v2p_mailbox & E1000_V2PMAILBOX_R2C_BITS;
+
+	return v2p_mailbox;
+}
+
+/**
+ *  e1000_check_for_bit_vf - Determine if a status bit was set
+ *  @hw: pointer to the HW structure
+ *  @mask: bitmask for bits to be tested and cleared
+ *
+ *  This function is used to check for the read to clear bits within
+ *  the V2P mailbox.
+ **/
+static s32 e1000_check_for_bit_vf(struct e1000_hw *hw, u32 mask)
+{
+	u32 v2p_mailbox = e1000_read_v2p_mailbox(hw);
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (v2p_mailbox & mask)
+		ret_val = E1000_SUCCESS;
+
+	hw->dev_spec.vf.v2p_mailbox &= ~mask;
+
+	return ret_val;
+}
+
+/**
+ *  e1000_check_for_msg_vf - checks to see if the PF has sent mail
+ *  @hw: pointer to the HW structure
+ *
+ *  returns SUCCESS if the PF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_msg_vf(struct e1000_hw *hw)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFSTS)) {
+		ret_val = E1000_SUCCESS;
+		hw->mbx.stats.reqs++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  e1000_check_for_ack_vf - checks to see if the PF has ACK'd
+ *  @hw: pointer to the HW structure
+ *
+ *  returns SUCCESS if the PF has set the ACK bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_ack_vf(struct e1000_hw *hw)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFACK)) {
+		ret_val = E1000_SUCCESS;
+		hw->mbx.stats.acks++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  e1000_check_for_rst_vf - checks to see if the PF has reset
+ *  @hw: pointer to the HW structure
+ *
+ *  returns true if the PF has set the reset done bit or else false
+ **/
+static s32 e1000_check_for_rst_vf(struct e1000_hw *hw)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!e1000_check_for_bit_vf(hw, (E1000_V2PMAILBOX_RSTD |
+	                                 E1000_V2PMAILBOX_RSTI))) {
+		ret_val = E1000_SUCCESS;
+		hw->mbx.stats.rsts++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  e1000_obtain_mbx_lock_vf - obtain mailbox lock
+ *  @hw: pointer to the HW structure
+ *
+ *  return SUCCESS if we obtained the mailbox lock
+ **/
+static s32 e1000_obtain_mbx_lock_vf(struct e1000_hw *hw)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	/* Take ownership of the buffer */
+	ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_VFU);
+
+	/* reserve mailbox for vf use */
+	if (e1000_read_v2p_mailbox(hw) & E1000_V2PMAILBOX_VFU)
+		ret_val = E1000_SUCCESS;
+
+	return ret_val;
+}
+
+/**
+ *  e1000_write_mbx_vf - Write a message to the mailbox
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  returns SUCCESS if it successfully copied message into the buffer
+ **/
+static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+	s32 err;
+	u16 i;
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	err = e1000_obtain_mbx_lock_vf(hw);
+	if (err)
+		goto out_no_write;
+
+	/* flush any ack or msg as we are going to overwrite mailbox */
+	e1000_check_for_ack_vf(hw);
+	e1000_check_for_msg_vf(hw);
+
+	/* copy the caller specified message to the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		array_ew32(VMBMEM(0), i, msg[i]);
+
+	/* update stats */
+	hw->mbx.stats.msgs_tx++;
+
+	/* Drop VFU and interrupt the PF to tell it a message has been sent */
+	ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_REQ);
+
+out_no_write:
+	return err;
+}
+
+/**
+ *  e1000_read_mbx_vf - Reads a message from the inbox intended for vf
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  returns SUCCESS if it successfuly read message from buffer
+ **/
+static s32 e1000_read_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+	s32 err;
+	u16 i;
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	err = e1000_obtain_mbx_lock_vf(hw);
+	if (err)
+		goto out_no_read;
+
+	/* copy the message from the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		msg[i] = array_er32(VMBMEM(0), i);
+
+	/* Acknowledge receipt and release mailbox, then we're done */
+	ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_ACK);
+
+	/* update stats */
+	hw->mbx.stats.msgs_rx++;
+
+out_no_read:
+	return err;
+}
+
+/**
+ *  e1000_init_mbx_params_vf - set initial values for vf mailbox
+ *  @hw: pointer to the HW structure
+ *
+ *  Initializes the hw->mbx struct to correct values for vf mailbox
+ */
+s32 e1000_init_mbx_params_vf(struct e1000_hw *hw)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+
+	/* start mailbox as timed out and let the reset_hw call set the timeout
+	 * value to being communications */
+	mbx->timeout = 0;
+	mbx->usec_delay = E1000_VF_MBX_INIT_DELAY;
+
+	mbx->size = E1000_VFMAILBOX_SIZE;
+
+	mbx->ops.read = e1000_read_mbx_vf;
+	mbx->ops.write = e1000_write_mbx_vf;
+	mbx->ops.read_posted = e1000_read_posted_mbx;
+	mbx->ops.write_posted = e1000_write_posted_mbx;
+	mbx->ops.check_for_msg = e1000_check_for_msg_vf;
+	mbx->ops.check_for_ack = e1000_check_for_ack_vf;
+	mbx->ops.check_for_rst = e1000_check_for_rst_vf;
+
+	mbx->stats.msgs_tx = 0;
+	mbx->stats.msgs_rx = 0;
+	mbx->stats.reqs = 0;
+	mbx->stats.acks = 0;
+	mbx->stats.rsts = 0;
+
+	return E1000_SUCCESS;
+}
+

drivers/net/igbvf/mbx.h

+/*******************************************************************************
+
+  Intel(R) 82576 Virtual Function Linux driver
+  Copyright(c) 1999 - 2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_MBX_H_
+#define _E1000_MBX_H_
+
+#include "vf.h"
+
+#define E1000_V2PMAILBOX_REQ   0x00000001 /* Request for PF Ready bit */
+#define E1000_V2PMAILBOX_ACK   0x00000002 /* Ack PF message received */
+#define E1000_V2PMAILBOX_VFU   0x00000004 /* VF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFU   0x00000008 /* PF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFSTS 0x00000010 /* PF wrote a message in the MB */
+#define E1000_V2PMAILBOX_PFACK 0x00000020 /* PF ack the previous VF msg */
+#define E1000_V2PMAILBOX_RSTI  0x00000040 /* PF has reset indication */
+#define E1000_V2PMAILBOX_RSTD  0x00000080 /* PF has indicated reset done */
+#define E1000_V2PMAILBOX_R2C_BITS 0x000000B0 /* All read to clear bits */
+
+#define E1000_VFMAILBOX_SIZE   16 /* 16 32 bit words - 64 bytes */
+
+/* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
+ * PF.  The reverse is true if it is E1000_PF_*.
+ * Message ACK's are the value or'd with 0xF0000000
+ */
+#define E1000_VT_MSGTYPE_ACK      0x80000000  /* Messages below or'd with
+                                               * this are the ACK */
+#define E1000_VT_MSGTYPE_NACK     0x40000000  /* Messages below or'd with
+                                               * this are the NACK */
+#define E1000_VT_MSGTYPE_CTS      0x20000000  /* Indicates that VF is still
+                                                 clear to send requests */
+
+/* We have a total wait time of 1s for vf mailbox posted messages */
+#define E1000_VF_MBX_INIT_TIMEOUT 2000 /* retry count for mailbox timeout */
+#define E1000_VF_MBX_INIT_DELAY   500  /* usec delay between retries */
+
+#define E1000_VT_MSGINFO_SHIFT    16
+/* bits 23:16 are used for exra info for certain messages */
+#define E1000_VT_MSGINFO_MASK     (0xFF << E1000_VT_MSGINFO_SHIFT)
+
+#define E1000_VF_RESET            0x01 /* VF requests reset */
+#define E1000_VF_SET_MAC_ADDR     0x02 /* VF requests PF to set MAC addr */
+#define E1000_VF_SET_MULTICAST    0x03 /* VF requests PF to set MC addr */
+#define E1000_VF_SET_VLAN         0x04 /* VF requests PF to set VLAN */
+#define E1000_VF_SET_LPE          0x05 /* VF requests PF to set VMOLR.LPE */
+
+#define E1000_PF_CONTROL_MSG      0x0100 /* PF control message */
+
+void e1000_init_mbx_ops_generic(struct e1000_hw *hw);
+s32 e1000_init_mbx_params_vf(struct e1000_hw *);
+
+#endif /* _E1000_MBX_H_ */

drivers/net/igbvf/regs.h

+/*******************************************************************************
+
+  Intel(R) 82576 Virtual Function Linux driver
+  Copyright(c) 2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_REGS_H_
+#define _E1000_REGS_H_
+
+#define E1000_CTRL      0x00000 /* Device Control - RW */
+#define E1000_STATUS    0x00008 /* Device Status - RO */
+#define E1000_ITR       0x000C4 /* Interrupt Throttling Rate - RW */
+#define E1000_EICR      0x01580 /* Ext. Interrupt Cause Read - R/clr */
+#define E1000_EITR(_n)  (0x01680 + (0x4 * (_n)))
+#define E1000_EICS      0x01520 /* Ext. Interrupt Cause Set - W0 */
+#define E1000_EIMS      0x01524 /* Ext. Interrupt Mask Set/Read - RW */
+#define E1000_EIMC      0x01528 /* Ext. Interrupt Mask Clear - WO */
+#define E1000_EIAC      0x0152C /* Ext. Interrupt Auto Clear - RW */
+#define E1000_EIAM      0x01530 /* Ext. Interrupt Ack Auto Clear Mask - RW */
+#define E1000_IVAR0     0x01700 /* Interrupt Vector Allocation (array) - RW */
+#define E1000_IVAR_MISC 0x01740 /* IVAR for "other" causes - RW */
+/*
+ * Convenience macros
+ *
+ * Note: "_n" is the queue number of the register to be written to.
+ *
+ * Example usage:
+ * E1000_RDBAL_REG(current_rx_queue)
+ */
+#define E1000_RDBAL(_n)      ((_n) < 4 ? (0x02800 + ((_n) * 0x100)) : \
+                                         (0x0C000 + ((_n) * 0x40)))
+#define E1000_RDBAH(_n)      ((_n) < 4 ? (0x02804 + ((_n) * 0x100)) : \
+                                         (0x0C004 + ((_n) * 0x40)))
+#define E1000_RDLEN(_n)      ((_n) < 4 ? (0x02808 + ((_n) * 0x100)) : \
+                                         (0x0C008 + ((_n) * 0x40)))
+#define E1000_SRRCTL(_n)     ((_n) < 4 ? (0x0280C + ((_n) * 0x100)) : \
+                                         (0x0C00C + ((_n) * 0x40)))
+#define E1000_RDH(_n)        ((_n) < 4 ? (0x02810 + ((_n) * 0x100)) : \
+                                         (0x0C010 + ((_n) * 0x40)))
+#define E1000_RDT(_n)        ((_n) < 4 ? (0x02818 + ((_n) * 0x100)) : \
+                                         (0x0C018 + ((_n) * 0x40)))
+#define E1000_RXDCTL(_n)     ((_n) < 4 ? (0x02828 + ((_n) * 0x100)) : \
+                                         (0x0C028 + ((_n) * 0x40)))
+#define E1000_TDBAL(_n)      ((_n) < 4 ? (0x03800 + ((_n) * 0x100)) : \
+                                         (0x0E000 + ((_n) * 0x40)))
+#define E1000_TDBAH(_n)      ((_n) < 4 ? (0x03804 + ((_n) * 0x100)) : \
+                                         (0x0E004 + ((_n) * 0x40)))
+#define E1000_TDLEN(_n)      ((_n) < 4 ? (0x03808 + ((_n) * 0x100)) : \
+                                         (0x0E008 + ((_n) * 0x40)))
+#define E1000_TDH(_n)        ((_n) < 4 ? (0x03810 + ((_n) * 0x100)) : \
+                                         (0x0E010 + ((_n) * 0x40)))
+#define E1000_TDT(_n)        ((_n) < 4 ? (0x03818 + ((_n) * 0x100)) : \
+                                         (0x0E018 + ((_n) * 0x40)))
+#define E1000_TXDCTL(_n)     ((_n) < 4 ? (0x03828 + ((_n) * 0x100)) : \
+                                         (0x0E028 + ((_n) * 0x40)))
+#define E1000_DCA_TXCTRL(_n) (0x03814 + (_n << 8))
+#define E1000_DCA_RXCTRL(_n) (0x02814 + (_n << 8))
+#define E1000_RAL(_i)  (((_i) <= 15) ? (0x05400 + ((_i) * 8)) : \
+                                       (0x054E0 + ((_i - 16) * 8)))
+#define E1000_RAH(_i)  (((_i) <= 15) ? (0x05404 + ((_i) * 8)) : \
+                                       (0x054E4 + ((_i - 16) * 8)))
+
+/* Statistics registers */
+#define E1000_VFGPRC    0x00F10
+#define E1000_VFGORC    0x00F18
+#define E1000_VFMPRC    0x00F3C
+#define E1000_VFGPTC    0x00F14
+#define E1000_VFGOTC    0x00F34
+#define E1000_VFGOTLBC  0x00F50
+#define E1000_VFGPTLBC  0x00F44
+#define E1000_VFGORLBC  0x00F48
+#define E1000_VFGPRLBC  0x00F40
+
+/* These act per VF so an array friendly macro is used */
+#define E1000_V2PMAILBOX(_n)   (0x00C40 + (4 * (_n)))
+#define E1000_VMBMEM(_n)       (0x00800 + (64 * (_n)))
+
+/* Define macros for handling registers */
+#define er32(reg) readl(hw->hw_addr + E1000_##reg)
+#define ew32(reg, val) writel((val), hw->hw_addr +  E1000_##reg)
+#define array_er32(reg, offset) \
+	readl(hw->hw_addr + E1000_##reg + (offset << 2))
+#define array_ew32(reg, offset, val) \
+	writel((val), hw->hw_addr +  E1000_##reg + (offset << 2))
+#define e1e_flush() er32(STATUS)
+
+#endif

drivers/net/mv643xx_eth.c

@@ -2274,8 +2274,6 @@ static void port_start(struct mv643xx_eth_private *mp)
 		pscr |= FORCE_LINK_PASS;
 	wrlp(mp, PORT_SERIAL_CONTROL, pscr);
 
-	wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
-
 	/*
 	 * Configure TX path and queues.
 	 */
@@ -2957,6 +2955,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 
 	netif_carrier_off(dev);
 
+	wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
+
 	set_rx_coal(mp, 250);
 	set_tx_coal(mp, 0);
 

drivers/net/niu.c

@@ -4834,6 +4834,7 @@ static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret)
 {
 	u64 val = 0;
 
+	*ret = 0;
 	switch (rp->rbr_block_size) {
 	case 4 * 1024:
 		val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT);
@@ -9542,7 +9543,7 @@ static struct niu_parent * __devinit niu_new_parent(struct niu *np,
 
 	plat_dev = platform_device_register_simple("niu", niu_parent_index,
 						   NULL, 0);
-	if (!plat_dev)
+	if (IS_ERR(plat_dev))
 		return NULL;
 
 	for (i = 0; attr_name(niu_parent_attributes[i]); i++) {

drivers/net/r6040.c

@@ -160,6 +160,7 @@ MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>,"
 	"Florian Fainelli <florian@openwrt.org>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("RDC R6040 NAPI PCI FastEthernet driver");
+MODULE_VERSION(DRV_VERSION " " DRV_RELDATE);
 
 /* RX and TX interrupts that we handle */
 #define RX_INTS			(RX_FIFO_FULL | RX_NO_DESC | RX_FINISH)

drivers/net/smsc911x.c

@@ -317,7 +317,7 @@ static int smsc911x_mii_read(struct mii_bus *bus, int phyaddr, int regidx)
 			goto out;
 		}
 
-	SMSC_WARNING(HW, "Timed out waiting for MII write to finish");
+	SMSC_WARNING(HW, "Timed out waiting for MII read to finish");
 	reg = -EIO;
 
 out:

include/net/netfilter/nf_conntrack_expect.h

@@ -99,9 +99,12 @@ void nf_ct_expect_init(struct nf_conntrack_expect *, unsigned int, u_int8_t,
 		       const union nf_inet_addr *,
 		       u_int8_t, const __be16 *, const __be16 *);
 void nf_ct_expect_put(struct nf_conntrack_expect *exp);
-int nf_ct_expect_related(struct nf_conntrack_expect *expect);
 int nf_ct_expect_related_report(struct nf_conntrack_expect *expect, 
 				u32 pid, int report);
+static inline int nf_ct_expect_related(struct nf_conntrack_expect *expect)
+{
+	return nf_ct_expect_related_report(expect, 0, 0);
+}
 
 #endif /*_NF_CONNTRACK_EXPECT_H*/
 

net/ipv6/netfilter/ip6_tables.c

@@ -1033,6 +1033,8 @@ static struct xt_counters *alloc_counters(struct xt_table *table)
 
 	xt_free_table_info(info);
 
+	return counters;
+
  free_counters:
 	vfree(counters);
  nomem:

net/netfilter/Kconfig

@@ -374,7 +374,7 @@ config NETFILTER_XT_TARGET_HL
 
 config NETFILTER_XT_TARGET_LED
 	tristate '"LED" target support'
-	depends on LEDS_CLASS && LED_TRIGGERS
+	depends on LEDS_CLASS && LEDS_TRIGGERS
 	depends on NETFILTER_ADVANCED
 	help
 	  This option adds a `LED' target, which allows you to blink LEDs in

net/netfilter/nf_conntrack_expect.c

@@ -372,7 +372,7 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect)
 	struct net *net = nf_ct_exp_net(expect);
 	struct hlist_node *n;
 	unsigned int h;
-	int ret = 0;
+	int ret = 1;
 
 	if (!master_help->helper) {
 		ret = -ESHUTDOWN;
@@ -412,43 +412,25 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect)
 	return ret;
 }
 
-int nf_ct_expect_related(struct nf_conntrack_expect *expect)
+int nf_ct_expect_related_report(struct nf_conntrack_expect *expect, 
+				u32 pid, int report)
 {
 	int ret;
 
 	spin_lock_bh(&nf_conntrack_lock);
 	ret = __nf_ct_expect_check(expect);
-	if (ret < 0)
+	if (ret <= 0)
 		goto out;
 
+	ret = 0;
 	nf_ct_expect_insert(expect);
-	atomic_inc(&expect->use);
 	spin_unlock_bh(&nf_conntrack_lock);
-	nf_ct_expect_event(IPEXP_NEW, expect);
-	nf_ct_expect_put(expect);
+	nf_ct_expect_event_report(IPEXP_NEW, expect, pid, report);
 	return ret;
 out:
 	spin_unlock_bh(&nf_conntrack_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(nf_ct_expect_related);
-
-int nf_ct_expect_related_report(struct nf_conntrack_expect *expect, 
-				u32 pid, int report)
-{
-	int ret;
-
-	spin_lock_bh(&nf_conntrack_lock);
-	ret = __nf_ct_expect_check(expect);
-	if (ret < 0)
-		goto out;
-	nf_ct_expect_insert(expect);
-out:
-	spin_unlock_bh(&nf_conntrack_lock);
-	if (ret == 0)
-		nf_ct_expect_event_report(IPEXP_NEW, expect, pid, report);
-	return ret;
-}
 EXPORT_SYMBOL_GPL(nf_ct_expect_related_report);
 
 #ifdef CONFIG_PROC_FS