[net-next 0/9][pull request] Intel Wired LAN Driver Updates

[net-next 0/9][pull request] Intel Wired LAN Driver Updates

[Jeff Kirsher]

This series contains updates to ioat (DCA) and ixgbevf.

The following are changes since commit 702ed3c1a9dfe4dfe112f13542d0c9d689f5008b:
  Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master

Alexander Duyck (1):
  ioat: Do not enable DCA if tag map is invalid

Greg Rose (8):
  ixgbevf: Streamline the rx buffer allocation
  ixgbevf: Fix unnecessary dereference where local var is available.
  ixgbevf: Remove the ring adapter pointer value
  ixgbevf: Remove checking for mac.ops function pointers
  ixgbevf: Remove mailbox spinlock from the reset function
  ixgbevf: White space and comments clean up
  ixgbevf: Remove unneeded and obsolete comment
  ixgbevf: Add checksum statistics counters to rings

 drivers/dma/ioat/dca.c                            |  23 ++++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      |   3 +-
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 123 +++++++++-------------
 3 files changed, 72 insertions(+), 77 deletions(-)

-- 
1.7.11.7

[net-next 1/9] ioat: Do not enable DCA if tag map is invalid

[Jeff Kirsher]

From: Alexander Duyck <alexander.h.duyck@intel.com>

I have encountered several systems that have an invalid tag map.  This
invalid tag map results in only two tags being generated 0x1F which is
usually applied to the first core in a Hyper-threaded pair and 0x00 which
is applied to the second core in a Hyper-threaded pair.  The net result of
all this is that DCA causes significant cache thrash because the 0x1F tag
will send traffic to the second socket, which the 0x00 tag will not DCA tag
the frame resulting in no benefit.

For now the best solution from the driver's perspective is to just disable
DCA if the tag map is invalid.  The correct solution for this would be to
have the BIOS on affected systems updated so that the correct tags are
generated for a given APIC ID.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/dma/ioat/dca.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c
index abd9038..d666807 100644
--- a/drivers/dma/ioat/dca.c
+++ b/drivers/dma/ioat/dca.c
@@ -604,6 +604,23 @@ static int ioat3_dca_count_dca_slots(void *iobase, u16 dca_offset)
 	return slots;
 }
 
+static inline int dca3_tag_map_invalid(u8 *tag_map)
+{
+	/*
+	 * If the tag map is not programmed by the BIOS the default is:
+	 * 0x80 0x80 0x80 0x80 0x80 0x00 0x00 0x00
+	 *
+	 * This an invalid map and will result in only 2 possible tags
+	 * 0x1F and 0x00.  0x00 is an invalid DCA tag so we know that
+	 * this entire definition is invalid.
+	 */
+	return ((tag_map[0] == DCA_TAG_MAP_VALID) &&
+		(tag_map[1] == DCA_TAG_MAP_VALID) &&
+		(tag_map[2] == DCA_TAG_MAP_VALID) &&
+		(tag_map[3] == DCA_TAG_MAP_VALID) &&
+		(tag_map[4] == DCA_TAG_MAP_VALID));
+}
+
 struct dca_provider * __devinit
 ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase)
 {
@@ -674,6 +691,12 @@ ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase)
 		ioatdca->tag_map[i] = bit & DCA_TAG_MAP_MASK;
 	}
 
+	if (dca3_tag_map_invalid(ioatdca->tag_map)) {
+		dev_err(&pdev->dev, "APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n");
+		free_dca_provider(dca);
+		return NULL;
+	}
+
 	err = register_dca_provider(dca, &pdev->dev);
 	if (err) {
 		free_dca_provider(dca);
-- 
1.7.11.7

[net-next 2/9] ixgbevf: Streamline the rx buffer allocation

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

Moves allocation of local variable to section where it is needed and
removes unnecessary if statement.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 9d88153..b46dff8 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -341,15 +341,16 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter,
 	struct pci_dev *pdev = adapter->pdev;
 	union ixgbe_adv_rx_desc *rx_desc;
 	struct ixgbevf_rx_buffer *bi;
-	struct sk_buff *skb;
 	unsigned int i = rx_ring->next_to_use;
 
 	bi = &rx_ring->rx_buffer_info[i];
 
 	while (cleaned_count--) {
 		rx_desc = IXGBEVF_RX_DESC(rx_ring, i);
-		skb = bi->skb;
-		if (!skb) {
+
+		if (!bi->skb) {
+			struct sk_buff *skb;
+
 			skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
 							rx_ring->rx_buf_len);
 			if (!skb) {
@@ -357,8 +358,7 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter,
 				goto no_buffers;
 			}
 			bi->skb = skb;
-		}
-		if (!bi->dma) {
+
 			bi->dma = dma_map_single(&pdev->dev, skb->data,
 						 rx_ring->rx_buf_len,
 						 DMA_FROM_DEVICE);
-- 
1.7.11.7

[net-next 3/9] ixgbevf: Fix unnecessary dereference where local var is available.

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

Remove dereference of hw pointer from adapter structure since a pointer
to the hw structure has already been allocated off the stack.  Also clean
up useless parenthesis.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index b46dff8..a001684 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1312,8 +1312,8 @@ static inline void ixgbevf_rx_desc_queue_enable(struct ixgbevf_adapter *adapter,
 		       "not set within the polling period\n", rxr);
 	}
 
-	ixgbevf_release_rx_desc(&adapter->hw, &adapter->rx_ring[rxr],
-				(adapter->rx_ring[rxr].count - 1));
+	ixgbevf_release_rx_desc(hw, &adapter->rx_ring[rxr],
+				adapter->rx_ring[rxr].count - 1);
 }
 
 static void ixgbevf_save_reset_stats(struct ixgbevf_adapter *adapter)
-- 
1.7.11.7

[net-next 4/9] ixgbevf: Remove the ring adapter pointer value

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

It is unused - remove it.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index 1211fa0..dbdf39b 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -58,7 +58,6 @@ struct ixgbevf_ring {
 	struct ixgbevf_ring *next;
 	struct net_device *netdev;
 	struct device *dev;
-	struct ixgbevf_adapter *adapter;  /* backlink */
 	void *desc;			/* descriptor ring memory */
 	dma_addr_t dma;			/* phys. address of descriptor ring */
 	unsigned int size;		/* length in bytes */
-- 
1.7.11.7

[net-next 5/9] ixgbevf: Remove checking for mac.ops function pointers

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

The function pointers will always be set - there is no good reason to
check them.  Also just remove get_bus_info() call as the VF has no bus
info to report.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 56 ++++++++---------------
 1 file changed, 18 insertions(+), 38 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a001684..8b8a685 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1150,9 +1150,6 @@ static int ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 	struct ixgbe_hw *hw = &adapter->hw;
 	int err;
 
-	if (!hw->mac.ops.set_vfta)
-		return -EOPNOTSUPP;
-
 	spin_lock_bh(&adapter->mbx_lock);
 
 	/* add VID to filter table */
@@ -1181,8 +1178,7 @@ static int ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 	spin_lock_bh(&adapter->mbx_lock);
 
 	/* remove VID from filter table */
-	if (hw->mac.ops.set_vfta)
-		err = hw->mac.ops.set_vfta(hw, vid, 0, false);
+	err = hw->mac.ops.set_vfta(hw, vid, 0, false);
 
 	spin_unlock_bh(&adapter->mbx_lock);
 
@@ -1243,8 +1239,7 @@ static void ixgbevf_set_rx_mode(struct net_device *netdev)
 	spin_lock_bh(&adapter->mbx_lock);
 
 	/* reprogram multicast list */
-	if (hw->mac.ops.update_mc_addr_list)
-		hw->mac.ops.update_mc_addr_list(hw, netdev);
+	hw->mac.ops.update_mc_addr_list(hw, netdev);
 
 	ixgbevf_write_uc_addr_list(netdev);
 
@@ -1414,12 +1409,10 @@ static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
 
 	spin_lock_bh(&adapter->mbx_lock);
 
-	if (hw->mac.ops.set_rar) {
-		if (is_valid_ether_addr(hw->mac.addr))
-			hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0);
-		else
-			hw->mac.ops.set_rar(hw, 0, hw->mac.perm_addr, 0);
-	}
+	if (is_valid_ether_addr(hw->mac.addr))
+		hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0);
+	else
+		hw->mac.ops.set_rar(hw, 0, hw->mac.perm_addr, 0);
 
 	spin_unlock_bh(&adapter->mbx_lock);
 
@@ -2201,6 +2194,7 @@ static void ixgbevf_watchdog_task(struct work_struct *work)
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 link_speed = adapter->link_speed;
 	bool link_up = adapter->link_up;
+	s32 need_reset;
 
 	adapter->flags |= IXGBE_FLAG_IN_WATCHDOG_TASK;
 
@@ -2208,29 +2202,20 @@ static void ixgbevf_watchdog_task(struct work_struct *work)
 	 * Always check the link on the watchdog because we have
 	 * no LSC interrupt
 	 */
-	if (hw->mac.ops.check_link) {
-		s32 need_reset;
 
-		spin_lock_bh(&adapter->mbx_lock);
+	spin_lock_bh(&adapter->mbx_lock);
 
-		need_reset = hw->mac.ops.check_link(hw, &link_speed,
-						    &link_up, false);
+	need_reset = hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 
-		spin_unlock_bh(&adapter->mbx_lock);
+	spin_unlock_bh(&adapter->mbx_lock);
 
-		if (need_reset) {
-			adapter->link_up = link_up;
-			adapter->link_speed = link_speed;
-			netif_carrier_off(netdev);
-			netif_tx_stop_all_queues(netdev);
-			schedule_work(&adapter->reset_task);
-			goto pf_has_reset;
-		}
-	} else {
-		/* always assume link is up, if no check link
-		 * function */
-		link_speed = IXGBE_LINK_SPEED_10GB_FULL;
-		link_up = true;
+	if (need_reset) {
+		adapter->link_up = link_up;
+		adapter->link_speed = link_speed;
+		netif_carrier_off(netdev);
+		netif_tx_stop_all_queues(netdev);
+		schedule_work(&adapter->reset_task);
+		goto pf_has_reset;
 	}
 	adapter->link_up = link_up;
 	adapter->link_speed = link_speed;
@@ -3070,8 +3055,7 @@ static int ixgbevf_set_mac(struct net_device *netdev, void *p)
 
 	spin_lock_bh(&adapter->mbx_lock);
 
-	if (hw->mac.ops.set_rar)
-		hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0);
+	hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0);
 
 	spin_unlock_bh(&adapter->mbx_lock);
 
@@ -3396,10 +3380,6 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_sw_init;
 
-	/* pick up the PCI bus settings for reporting later */
-	if (hw->mac.ops.get_bus_info)
-		hw->mac.ops.get_bus_info(hw);
-
 	strcpy(netdev->name, "eth%d");
 
 	err = register_netdev(netdev);
-- 
1.7.11.7

[net-next 6/9] ixgbevf: Remove mailbox spinlock from the reset function

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

The spinlocks are not required during reset.  There won't be any
contention for the mailbox resource.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 8b8a685..592fe99 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1702,15 +1702,11 @@ void ixgbevf_reset(struct ixgbevf_adapter *adapter)
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
 
-	spin_lock_bh(&adapter->mbx_lock);
-
 	if (hw->mac.ops.reset_hw(hw))
 		hw_dbg(hw, "PF still resetting\n");
 	else
 		hw->mac.ops.init_hw(hw);
 
-	spin_unlock_bh(&adapter->mbx_lock);
-
 	if (is_valid_ether_addr(adapter->hw.mac.addr)) {
 		memcpy(netdev->dev_addr, adapter->hw.mac.addr,
 		       netdev->addr_len);
-- 
1.7.11.7

[net-next 7/9] ixgbevf: White space and comments clean up

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 592fe99..57ae5cd 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -121,7 +121,6 @@ static inline void ixgbevf_release_rx_desc(struct ixgbe_hw *hw,
  * @direction: 0 for Rx, 1 for Tx, -1 for other causes
  * @queue: queue to map the corresponding interrupt to
  * @msix_vector: the vector to map to the corresponding queue
- *
  */
 static void ixgbevf_set_ivar(struct ixgbevf_adapter *adapter, s8 direction,
 			     u8 queue, u8 msix_vector)
@@ -380,7 +379,6 @@ static void ixgbevf_alloc_rx_buffers(struct ixgbevf_adapter *adapter,
 no_buffers:
 	if (rx_ring->next_to_use != i) {
 		rx_ring->next_to_use = i;
-
 		ixgbevf_release_rx_desc(&adapter->hw, rx_ring, i);
 	}
 }
@@ -765,7 +763,6 @@ static irqreturn_t ixgbevf_msix_other(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-
 /**
  * ixgbevf_msix_clean_rings - single unshared vector rx clean (all queues)
  * @irq: unused
@@ -1224,12 +1221,13 @@ static int ixgbevf_write_uc_addr_list(struct net_device *netdev)
 }
 
 /**
- * ixgbevf_set_rx_mode - Multicast set
+ * ixgbevf_set_rx_mode - Multicast and unicast set
  * @netdev: network interface device structure
  *
  * The set_rx_method entry point is called whenever the multicast address
- * list or the network interface flags are updated.  This routine is
- * responsible for configuring the hardware for proper multicast mode.
+ * list, unicast address list or the network interface flags are updated.
+ * This routine is responsible for configuring the hardware for proper
+ * multicast mode and configuring requested unicast filters.
  **/
 static void ixgbevf_set_rx_mode(struct net_device *netdev)
 {
@@ -1588,7 +1586,6 @@ static void ixgbevf_clean_tx_ring(struct ixgbevf_adapter *adapter,
 		return;
 
 	/* Free all the Tx ring sk_buffs */
-
 	for (i = 0; i < tx_ring->count; i++) {
 		tx_buffer_info = &tx_ring->tx_buffer_info[i];
 		ixgbevf_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
@@ -1757,6 +1754,7 @@ static int ixgbevf_acquire_msix_vectors(struct ixgbevf_adapter *adapter,
 		 */
 		adapter->num_msix_vectors = vectors;
 	}
+
 	return err;
 }
 
@@ -2053,7 +2051,7 @@ static int __devinit ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 			goto out;
 		}
 		memcpy(adapter->netdev->dev_addr, adapter->hw.mac.addr,
-			adapter->netdev->addr_len);
+		       adapter->netdev->addr_len);
 	}
 
 	/* lock to protect mailbox accesses */
@@ -2198,7 +2196,6 @@ static void ixgbevf_watchdog_task(struct work_struct *work)
 	 * Always check the link on the watchdog because we have
 	 * no LSC interrupt
 	 */
-
 	spin_lock_bh(&adapter->mbx_lock);
 
 	need_reset = hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
@@ -2704,9 +2701,6 @@ static int ixgbevf_tso(struct ixgbevf_ring *tx_ring,
 static bool ixgbevf_tx_csum(struct ixgbevf_ring *tx_ring,
 			    struct sk_buff *skb, u32 tx_flags)
 {
-
-
-
 	u32 vlan_macip_lens = 0;
 	u32 mss_l4len_idx = 0;
 	u32 type_tucmd = 0;
@@ -2896,7 +2890,6 @@ static void ixgbevf_tx_queue(struct ixgbevf_ring *tx_ring, int tx_flags,
 		olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
 		if (tx_flags & IXGBE_TX_FLAGS_IPV4)
 			olinfo_status |= IXGBE_ADVTXD_POPTS_IXSM;
-
 	}
 
 	/*
-- 
1.7.11.7

[net-next 8/9] ixgbevf: Remove unneeded and obsolete comment

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 57ae5cd..a52b14e 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1681,13 +1681,6 @@ void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter)
 	while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 		msleep(1);
 
-	/*
-	 * Check if PF is up before re-init.  If not then skip until
-	 * later when the PF is up and ready to service requests from
-	 * the VF via mailbox.  If the VF is up and running then the
-	 * watchdog task will continue to schedule reset tasks until
-	 * the PF is up and running.
-	 */
 	ixgbevf_down(adapter);
 	ixgbevf_up(adapter);
 
-- 
1.7.11.7

[net-next 9/9] ixgbevf: Add checksum statistics counters to rings

[Jeff Kirsher]

From: Greg Rose <gregory.v.rose@intel.com>

Add hardware checksum statistic counters to the ring structures and
then during packet processing update those counters instead of the
global counters in the adapter structure.  Only update the adapter
structure counters when all other statistics are gathered in the
ixgbevf_update_stats() function.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      |  2 ++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 23 ++++++++++++++++-------
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index dbdf39b..fc0af9a 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -74,6 +74,8 @@ struct ixgbevf_ring {
 	u64			total_bytes;
 	u64			total_packets;
 	struct u64_stats_sync	syncp;
+	u64 hw_csum_rx_error;
+	u64 hw_csum_rx_good;
 
 	u16 head;
 	u16 tail;
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a52b14e..f267c00 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -295,12 +295,11 @@ static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector,
 
 /**
  * ixgbevf_rx_checksum - indicate in skb if hw indicated a good cksum
- * @adapter: address of board private structure
+ * @ring: pointer to Rx descriptor ring structure
  * @status_err: hardware indication of status of receive
  * @skb: skb currently being received and modified
  **/
-static inline void ixgbevf_rx_checksum(struct ixgbevf_adapter *adapter,
-				       struct ixgbevf_ring *ring,
+static inline void ixgbevf_rx_checksum(struct ixgbevf_ring *ring,
 				       u32 status_err, struct sk_buff *skb)
 {
 	skb_checksum_none_assert(skb);
@@ -312,7 +311,7 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_adapter *adapter,
 	/* if IP and error */
 	if ((status_err & IXGBE_RXD_STAT_IPCS) &&
 	    (status_err & IXGBE_RXDADV_ERR_IPE)) {
-		adapter->hw_csum_rx_error++;
+		ring->hw_csum_rx_error++;
 		return;
 	}
 
@@ -320,13 +319,13 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_adapter *adapter,
 		return;
 
 	if (status_err & IXGBE_RXDADV_ERR_TCPE) {
-		adapter->hw_csum_rx_error++;
+		ring->hw_csum_rx_error++;
 		return;
 	}
 
 	/* It must be a TCP or UDP packet with a valid checksum */
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
-	adapter->hw_csum_rx_good++;
+	ring->hw_csum_rx_good++;
 }
 
 /**
@@ -462,7 +461,7 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
 			goto next_desc;
 		}
 
-		ixgbevf_rx_checksum(adapter, rx_ring, staterr, skb);
+		ixgbevf_rx_checksum(rx_ring, staterr, skb);
 
 		/* probably a little skewed due to removing CRC */
 		total_rx_bytes += skb->len;
@@ -2094,6 +2093,7 @@ out:
 void ixgbevf_update_stats(struct ixgbevf_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
+	int i;
 
 	UPDATE_VF_COUNTER_32bit(IXGBE_VFGPRC, adapter->stats.last_vfgprc,
 				adapter->stats.vfgprc);
@@ -2107,6 +2107,15 @@ void ixgbevf_update_stats(struct ixgbevf_adapter *adapter)
 				adapter->stats.vfgotc);
 	UPDATE_VF_COUNTER_32bit(IXGBE_VFMPRC, adapter->stats.last_vfmprc,
 				adapter->stats.vfmprc);
+
+	for (i = 0;  i  < adapter->num_rx_queues;  i++) {
+		adapter->hw_csum_rx_error +=
+			adapter->rx_ring[i].hw_csum_rx_error;
+		adapter->hw_csum_rx_good +=
+			adapter->rx_ring[i].hw_csum_rx_good;
+		adapter->rx_ring[i].hw_csum_rx_error = 0;
+		adapter->rx_ring[i].hw_csum_rx_good = 0;
+	}
 }
 
 /**
-- 
1.7.11.7

Re: [net-next 0/9][pull request] Intel Wired LAN Driver Updates

[David Miller]

From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Thu, 15 Nov 2012 06:39:38 -0800

> This series contains updates to ioat (DCA) and ixgbevf.
> 
> The following are changes since commit 702ed3c1a9dfe4dfe112f13542d0c9d689f5008b:
>   Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
> and are available in the git repository at:
>   git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master

Pulled, thanks Jeff.