Merge commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81' into stable/for-linus-3.4

* commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81': (14566 commits)
  cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS
  sparc64: Eliminate obsolete __handle_softirq() function
  sparc64: Fix bootup crash on sun4v.
  kconfig: delete last traces of __enabled_ from autoconf.h
  Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols"
  kconfig: fix IS_ENABLED to not require all options to be defined
  irq_domain: fix type mismatch in debugfs output format
  staging: android: fix mem leaks in __persistent_ram_init()
  staging: vt6656: Don't leak memory in drivers/staging/vt6656/ioctl.c::private_ioctl()
  staging: iio: hmc5843: Fix crash in probe function.
  panic: fix stack dump print on direct call to panic()
  drivers/rtc/rtc-pl031.c: enable clock on all ST variants
  Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()"
  hugetlb: fix race condition in hugetlb_fault()
  drivers/rtc/rtc-twl.c: use static register while reading time
  drivers/rtc/rtc-s3c.c: add placeholder for driver private data
  drivers/rtc/rtc-s3c.c: fix compilation error
  MAINTAINERS: add PCDP console maintainer
  memcg: do not open code accesses to res_counter members
  drivers/rtc/rtc-efi.c: fix section mismatch warning
  ...

1 files changed, 51 insertions, 45 deletions

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 891162d1610c..307611ae831d 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel 82599 Virtual Function driver
-  Copyright(c) 1999 - 2010 Intel Corporation.
+  Copyright(c) 1999 - 2012 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,
@@ -53,14 +53,14 @@
 
 #include "ixgbevf.h"
 
-char ixgbevf_driver_name[] = "ixgbevf";
+const char ixgbevf_driver_name[] = "ixgbevf";
 static const char ixgbevf_driver_string[] =
 	"Intel(R) 10 Gigabit PCI Express Virtual Function Network Driver";
 
 #define DRV_VERSION "2.2.0-k"
 const char ixgbevf_driver_version[] = DRV_VERSION;
 static char ixgbevf_copyright[] =
-	"Copyright (c) 2009 - 2010 Intel Corporation.";
+	"Copyright (c) 2009 - 2012 Intel Corporation.";
 
 static const struct ixgbevf_info *ixgbevf_info_tbl[] = {
 	[board_82599_vf] = &ixgbevf_82599_vf_info,
@@ -91,7 +91,10 @@ MODULE_DESCRIPTION("Intel(R) 82599 Virtual Function Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
-#define DEFAULT_DEBUG_LEVEL_SHIFT 3
+#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
 
 /* forward decls */
 static void ixgbevf_set_itr_msix(struct ixgbevf_q_vector *q_vector);
@@ -917,32 +920,39 @@ static irqreturn_t ixgbevf_msix_mbx(int irq, void *data)
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 eicr;
 	u32 msg;
+	bool got_ack = false;
 
 	eicr = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 	IXGBE_WRITE_REG(hw, IXGBE_VTEICR, eicr);
 
-	if (!hw->mbx.ops.check_for_ack(hw)) {
+	if (!hw->mbx.ops.check_for_ack(hw))
+		got_ack = true;
+
+	if (!hw->mbx.ops.check_for_msg(hw)) {
+		hw->mbx.ops.read(hw, &msg, 1);
+
+		if ((msg & IXGBE_MBVFICR_VFREQ_MASK) == IXGBE_PF_CONTROL_MSG)
+			mod_timer(&adapter->watchdog_timer,
+				  round_jiffies(jiffies + 1));
+
+		if (msg & IXGBE_VT_MSGTYPE_NACK)
+			pr_warn("Last Request of type %2.2x to PF Nacked\n",
+				msg & 0xFF);
 		/*
-		 * checking for the ack clears the PFACK bit.  Place
-		 * it back in the v2p_mailbox cache so that anyone
-		 * polling for an ack will not miss it.  Also
-		 * avoid the read below because the code to read
-		 * the mailbox will also clear the ack bit.  This was
-		 * causing lost acks.  Just cache the bit and exit
-		 * the IRQ handler.
+		 * Restore the PFSTS bit in case someone is polling for a
+		 * return message from the PF
 		 */
-		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFACK;
-		goto out;
+		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFSTS;
 	}
 
-	/* Not an ack interrupt, go ahead and read the message */
-	hw->mbx.ops.read(hw, &msg, 1);
-
-	if ((msg & IXGBE_MBVFICR_VFREQ_MASK) == IXGBE_PF_CONTROL_MSG)
-		mod_timer(&adapter->watchdog_timer,
-			  round_jiffies(jiffies + 1));
+	/*
+	 * checking for the ack clears the PFACK bit.  Place
+	 * it back in the v2p_mailbox cache so that anyone
+	 * polling for an ack will not miss it
+	 */
+	if (got_ack)
+		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFACK;
 
-out:
 	return IRQ_HANDLED;
 }
 
@@ -2192,13 +2202,17 @@ static int __devinit ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 	if (err) {
 		dev_info(&pdev->dev,
 		         "PF still in reset state, assigning new address\n");
-		dev_hw_addr_random(adapter->netdev, hw->mac.addr);
+		eth_hw_addr_random(adapter->netdev);
+		memcpy(adapter->hw.mac.addr, adapter->netdev->dev_addr,
+			adapter->netdev->addr_len);
 	} else {
 		err = hw->mac.ops.init_hw(hw);
 		if (err) {
 			pr_err("init_shared_code failed: %d\n", err);
 			goto out;
 		}
+		memcpy(adapter->netdev->dev_addr, adapter->hw.mac.addr,
+			adapter->netdev->addr_len);
 	}
 
 	/* Enable dynamic interrupt throttling rates */
@@ -2217,6 +2231,7 @@ static int __devinit ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 	adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED;
 
 	set_bit(__IXGBEVF_DOWN, &adapter->state);
+	return 0;
 
 out:
 	return err;
@@ -2514,12 +2529,8 @@ int ixgbevf_setup_rx_resources(struct ixgbevf_adapter *adapter,
 
 	size = sizeof(struct ixgbevf_rx_buffer) * rx_ring->count;
 	rx_ring->rx_buffer_info = vzalloc(size);
-	if (!rx_ring->rx_buffer_info) {
-		hw_dbg(&adapter->hw,
-		       "Unable to vmalloc buffer memory for "
-		       "the receive descriptor ring\n");
+	if (!rx_ring->rx_buffer_info)
 		goto alloc_failed;
-	}
 
 	/* Round up to nearest 4K */
 	rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);
@@ -3359,7 +3370,7 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 	adapter->pdev = pdev;
 	hw = &adapter->hw;
 	hw->back = adapter;
-	adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
+	adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
 
 	/*
 	 * call save state here in standalone driver because it relies on
@@ -3391,6 +3402,17 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 
 	/* setup the private structure */
 	err = ixgbevf_sw_init(adapter);
+	if (err)
+		goto err_sw_init;
+
+	/* The HW MAC address was set and/or determined in sw_init */
+	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		pr_err("invalid MAC address\n");
+		err = -EIO;
+		goto err_sw_init;
+	}
 
 	netdev->hw_features = NETIF_F_SG |
 			   NETIF_F_IP_CSUM |
@@ -3415,16 +3437,6 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 
 	netdev->priv_flags |= IFF_UNICAST_FLT;
 
-	/* The HW MAC address was set and/or determined in sw_init */
-	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
-	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
-
-	if (!is_valid_ether_addr(netdev->dev_addr)) {
-		pr_err("invalid MAC address\n");
-		err = -EIO;
-		goto err_sw_init;
-	}
-
 	init_timer(&adapter->watchdog_timer);
 	adapter->watchdog_timer.function = ixgbevf_watchdog;
 	adapter->watchdog_timer.data = (unsigned long)adapter;
@@ -3453,13 +3465,7 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 	ixgbevf_init_last_counter_stats(adapter);
 
 	/* print the MAC address */
-	hw_dbg(hw, "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
-	       netdev->dev_addr[0],
-	       netdev->dev_addr[1],
-	       netdev->dev_addr[2],
-	       netdev->dev_addr[3],
-	       netdev->dev_addr[4],
-	       netdev->dev_addr[5]);
+	hw_dbg(hw, "%pM\n", netdev->dev_addr);
 
 	hw_dbg(hw, "MAC: %d\n", hw->mac.type);