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

6 files changed, 772 insertions, 628 deletions

diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h
index aed217449f0d..89eb1f85b9fa 100644
--- a/drivers/net/ethernet/intel/igb/e1000_defines.h
+++ b/drivers/net/ethernet/intel/igb/e1000_defines.h
@@ -134,6 +134,8 @@
 #define E1000_RCTL_SZ_256         0x00030000    /* rx buffer size 256 */
 #define E1000_RCTL_VFE            0x00040000    /* vlan filter enable */
 #define E1000_RCTL_CFIEN          0x00080000    /* canonical form enable */
+#define E1000_RCTL_DPF            0x00400000    /* Discard Pause Frames */
+#define E1000_RCTL_PMCF           0x00800000    /* pass MAC control frames */
 #define E1000_RCTL_SECRC          0x04000000    /* Strip Ethernet CRC */
 
 /*
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index e96cef89f121..c4902411d749 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1769,10 +1769,21 @@ static int igb_set_features(struct net_device *netdev,
 	netdev_features_t features)
 {
 	netdev_features_t changed = netdev->features ^ features;
+	struct igb_adapter *adapter = netdev_priv(netdev);
 
 	if (changed & NETIF_F_HW_VLAN_RX)
 		igb_vlan_mode(netdev, features);
 
+	if (!(changed & NETIF_F_RXALL))
+		return 0;
+
+	netdev->features = features;
+
+	if (netif_running(netdev))
+		igb_reinit_locked(adapter);
+	else
+		igb_reset(adapter);
+
 	return 0;
 }
 
@@ -1954,6 +1965,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	/* copy netdev features into list of user selectable features */
 	netdev->hw_features |= netdev->features;
+	netdev->hw_features |= NETIF_F_RXALL;
 
 	/* set this bit last since it cannot be part of hw_features */
 	netdev->features |= NETIF_F_HW_VLAN_FILTER;
@@ -1964,6 +1976,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 				 NETIF_F_IPV6_CSUM |
 				 NETIF_F_SG;
 
+	netdev->priv_flags |= IFF_SUPP_NOFCS;
+
 	if (pci_using_dac) {
 		netdev->features |= NETIF_F_HIGHDMA;
 		netdev->vlan_features |= NETIF_F_HIGHDMA;
@@ -3003,6 +3017,22 @@ void igb_setup_rctl(struct igb_adapter *adapter)
 		wr32(E1000_QDE, ALL_QUEUES);
 	}
 
+	/* This is useful for sniffing bad packets. */
+	if (adapter->netdev->features & NETIF_F_RXALL) {
+		/* UPE and MPE will be handled by normal PROMISC logic
+		 * in e1000e_set_rx_mode */
+		rctl |= (E1000_RCTL_SBP | /* Receive bad packets */
+			 E1000_RCTL_BAM | /* RX All Bcast Pkts */
+			 E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */
+
+		rctl &= ~(E1000_RCTL_VFE | /* Disable VLAN filter */
+			  E1000_RCTL_DPF | /* Allow filtered pause */
+			  E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */
+		/* Do not mess with E1000_CTRL_VME, it affects transmit as well,
+		 * and that breaks VLANs.
+		 */
+	}
+
 	wr32(E1000_RCTL, rctl);
 }
 
@@ -4293,6 +4323,8 @@ static void igb_tx_map(struct igb_ring *tx_ring,
 
 	/* write last descriptor with RS and EOP bits */
 	cmd_type |= cpu_to_le32(size) | cpu_to_le32(IGB_TXD_DCMD);
+	if (unlikely(skb->no_fcs))
+		cmd_type &= ~(cpu_to_le32(E1000_ADVTXD_DCMD_IFCS));
 	tx_desc->read.cmd_type_len = cmd_type;
 
 	/* set the timestamp */
@@ -6098,8 +6130,9 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget)
 			goto next_desc;
 		}
 
-		if (igb_test_staterr(rx_desc,
-				     E1000_RXDEXT_ERR_FRAME_ERR_MASK)) {
+		if (unlikely((igb_test_staterr(rx_desc,
+					       E1000_RXDEXT_ERR_FRAME_ERR_MASK))
+			     && !(rx_ring->netdev->features & NETIF_F_RXALL))) {
 			dev_kfree_skb_any(skb);
 			goto next_desc;
 		}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index f069c1b10753..e0d809d0ed75 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -72,12 +72,6 @@
 
 /* Supported Rx Buffer Sizes */
 #define IXGBE_RXBUFFER_512   512    /* Used for packet split */
-#define IXGBE_RXBUFFER_2K   2048
-#define IXGBE_RXBUFFER_3K   3072
-#define IXGBE_RXBUFFER_4K   4096
-#define IXGBE_RXBUFFER_7K   7168
-#define IXGBE_RXBUFFER_8K   8192
-#define IXGBE_RXBUFFER_15K  15360
 #define IXGBE_MAX_RXBUFFER  16384  /* largest size for a single descriptor */
 
 /*
@@ -102,7 +96,6 @@
 #define IXGBE_TX_FLAGS_FCOE		(u32)(1 << 5)
 #define IXGBE_TX_FLAGS_FSO		(u32)(1 << 6)
 #define IXGBE_TX_FLAGS_TXSW		(u32)(1 << 7)
-#define IXGBE_TX_FLAGS_MAPPED_AS_PAGE	(u32)(1 << 8)
 #define IXGBE_TX_FLAGS_VLAN_MASK	0xffff0000
 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT  29
@@ -156,19 +149,18 @@ struct vf_macvlans {
 struct ixgbe_tx_buffer {
 	union ixgbe_adv_tx_desc *next_to_watch;
 	unsigned long time_stamp;
-	dma_addr_t dma;
-	u32 length;
-	u32 tx_flags;
 	struct sk_buff *skb;
-	u32 bytecount;
-	u16 gso_segs;
+	unsigned int bytecount;
+	unsigned short gso_segs;
+	DEFINE_DMA_UNMAP_ADDR(dma);
+	DEFINE_DMA_UNMAP_LEN(len);
+	u32 tx_flags;
 };
 
 struct ixgbe_rx_buffer {
 	struct sk_buff *skb;
 	dma_addr_t dma;
 	struct page *page;
-	dma_addr_t page_dma;
 	unsigned int page_offset;
 };
 
@@ -180,7 +172,6 @@ struct ixgbe_queue_stats {
 struct ixgbe_tx_queue_stats {
 	u64 restart_queue;
 	u64 tx_busy;
-	u64 completed;
 	u64 tx_done_old;
 };
 
@@ -193,21 +184,15 @@ struct ixgbe_rx_queue_stats {
 	u64 csum_err;
 };
 
-enum ixbge_ring_state_t {
+enum ixgbe_ring_state_t {
 	__IXGBE_TX_FDIR_INIT_DONE,
 	__IXGBE_TX_DETECT_HANG,
 	__IXGBE_HANG_CHECK_ARMED,
-	__IXGBE_RX_PS_ENABLED,
 	__IXGBE_RX_RSC_ENABLED,
 	__IXGBE_RX_CSUM_UDP_ZERO_ERR,
+	__IXGBE_RX_FCOE_BUFSZ,
 };
 
-#define ring_is_ps_enabled(ring) \
-	test_bit(__IXGBE_RX_PS_ENABLED, &(ring)->state)
-#define set_ring_ps_enabled(ring) \
-	set_bit(__IXGBE_RX_PS_ENABLED, &(ring)->state)
-#define clear_ring_ps_enabled(ring) \
-	clear_bit(__IXGBE_RX_PS_ENABLED, &(ring)->state)
 #define check_for_tx_hang(ring) \
 	test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 #define set_check_for_tx_hang(ring) \
@@ -233,7 +218,6 @@ struct ixgbe_ring {
 	u8 __iomem *tail;
 
 	u16 count;			/* amount of descriptors */
-	u16 rx_buf_len;
 
 	u8 queue_index; /* needed for multiqueue queue management */
 	u8 reg_idx;			/* holds the special value that gets
@@ -241,8 +225,13 @@ struct ixgbe_ring {
 					 * associated with this ring, which is
 					 * different for DCB and RSS modes
 					 */
-	u8 atr_sample_rate;
-	u8 atr_count;
+	union {
+		struct {
+			u8 atr_sample_rate;
+			u8 atr_count;
+		};
+		u16 next_to_alloc;
+	};
 
 	u16 next_to_use;
 	u16 next_to_clean;
@@ -287,6 +276,22 @@ struct ixgbe_ring_feature {
 	int mask;
 } ____cacheline_internodealigned_in_smp;
 
+/*
+ * FCoE requires that all Rx buffers be over 2200 bytes in length.  Since
+ * this is twice the size of a half page we need to double the page order
+ * for FCoE enabled Rx queues.
+ */
+#if defined(IXGBE_FCOE) && (PAGE_SIZE < 8192)
+static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
+{
+	return test_bit(__IXGBE_RX_FCOE_BUFSZ, &ring->state) ? 1 : 0;
+}
+#else
+#define ixgbe_rx_pg_order(_ring) 0
+#endif
+#define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
+#define ixgbe_rx_bufsz(_ring) ((PAGE_SIZE / 2) << ixgbe_rx_pg_order(_ring))
+
 struct ixgbe_ring_container {
 	struct ixgbe_ring *ring;	/* pointer to linked list of rings */
 	unsigned int total_bytes;	/* total bytes processed this int */
@@ -554,7 +559,7 @@ struct ixgbe_cb {
 	};
 	dma_addr_t dma;
 	u16 append_cnt;
-	bool delay_unmap;
+	bool page_released;
 };
 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
 
@@ -625,7 +630,8 @@ extern void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
 extern void ixgbe_do_reset(struct net_device *netdev);
 #ifdef IXGBE_FCOE
 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
-extern int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
+extern int ixgbe_fso(struct ixgbe_ring *tx_ring,
+		     struct ixgbe_tx_buffer *first,
                      u32 tx_flags, u8 *hdr_len);
 extern void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter);
 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 24f7291dbe57..b09e67cc9d6e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -35,6 +35,7 @@
 #include <linux/netdevice.h>
 #include <linux/ethtool.h>
 #include <linux/vmalloc.h>
+#include <linux/highmem.h>
 #include <linux/uaccess.h>
 
 #include "ixgbe.h"
@@ -1615,7 +1616,6 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 	rx_ring->dev = &adapter->pdev->dev;
 	rx_ring->netdev = adapter->netdev;
 	rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;
-	rx_ring->rx_buf_len = IXGBE_RXBUFFER_2K;
 
 	err = ixgbe_setup_rx_resources(rx_ring);
 	if (err) {
@@ -1718,13 +1718,15 @@ static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer,
 
 	frame_size >>= 1;
 
-	data = rx_buffer->skb->data;
+	data = kmap(rx_buffer->page) + rx_buffer->page_offset;
 
 	if (data[3] != 0xFF ||
 	    data[frame_size + 10] != 0xBE ||
 	    data[frame_size + 12] != 0xAF)
 		match = false;
 
+	kunmap(rx_buffer->page);
+
 	return match;
 }
 
@@ -1746,17 +1748,22 @@ static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
 		/* check Rx buffer */
 		rx_buffer = &rx_ring->rx_buffer_info[rx_ntc];
 
-		/* unmap Rx buffer, will be remapped by alloc_rx_buffers */
-		dma_unmap_single(rx_ring->dev,
-				 rx_buffer->dma,
-				 rx_ring->rx_buf_len,
-				 DMA_FROM_DEVICE);
-		rx_buffer->dma = 0;
+		/* sync Rx buffer for CPU read */
+		dma_sync_single_for_cpu(rx_ring->dev,
+					rx_buffer->dma,
+					ixgbe_rx_bufsz(rx_ring),
+					DMA_FROM_DEVICE);
 
 		/* verify contents of skb */
 		if (ixgbe_check_lbtest_frame(rx_buffer, size))
 			count++;
 
+		/* sync Rx buffer for device write */
+		dma_sync_single_for_device(rx_ring->dev,
+					   rx_buffer->dma,
+					   ixgbe_rx_bufsz(rx_ring),
+					   DMA_FROM_DEVICE);
+
 		/* unmap buffer on Tx side */
 		tx_buffer = &tx_ring->tx_buffer_info[tx_ntc];
 		ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index da7da752b6b4..5f943d3f85c4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
@@ -447,7 +447,7 @@ ddp_out:
 /**
  * ixgbe_fso - ixgbe FCoE Sequence Offload (FSO)
  * @tx_ring: tx desc ring
- * @skb: associated skb
+ * @first: first tx_buffer structure containing skb, tx_flags, and protocol
  * @tx_flags: tx flags
  * @hdr_len: hdr_len to be returned
  *
@@ -455,9 +455,11 @@ ddp_out:
  *
  * Returns : 0 indicates no FSO, > 0 for FSO, < 0 for error
  */
-int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
+int ixgbe_fso(struct ixgbe_ring *tx_ring,
+	      struct ixgbe_tx_buffer *first,
               u32 tx_flags, u8 *hdr_len)
 {
+	struct sk_buff *skb = first->skb;
 	struct fc_frame_header *fh;
 	u32 vlan_macip_lens;
 	u32 fcoe_sof_eof = 0;
@@ -530,9 +532,14 @@ int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
 	*hdr_len = sizeof(struct fcoe_crc_eof);
 
 	/* hdr_len includes fc_hdr if FCoE LSO is enabled */
-	if (skb_is_gso(skb))
-		*hdr_len += (skb_transport_offset(skb) +
-			     sizeof(struct fc_frame_header));
+	if (skb_is_gso(skb)) {
+		*hdr_len += skb_transport_offset(skb) +
+			    sizeof(struct fc_frame_header);
+		/* update gso_segs and bytecount */
+		first->gso_segs = DIV_ROUND_UP(skb->len - *hdr_len,
+					       skb_shinfo(skb)->gso_size);
+		first->bytecount += (first->gso_segs - 1) * *hdr_len;
+	}
 
 	/* mss_l4len_id: use 1 for FSO as TSO, no need for L4LEN */
 	mss_l4len_idx = skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 167e898fbba6..1d8f9f83f8ed 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -289,7 +289,7 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 	struct ixgbe_reg_info *reginfo;
 	int n = 0;
 	struct ixgbe_ring *tx_ring;
-	struct ixgbe_tx_buffer *tx_buffer_info;
+	struct ixgbe_tx_buffer *tx_buffer;
 	union ixgbe_adv_tx_desc *tx_desc;
 	struct my_u0 { u64 a; u64 b; } *u0;
 	struct ixgbe_ring *rx_ring;
@@ -329,14 +329,13 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 	pr_info("Queue [NTU] [NTC] [bi(ntc)->dma  ] leng ntw timestamp\n");
 	for (n = 0; n < adapter->num_tx_queues; n++) {
 		tx_ring = adapter->tx_ring[n];
-		tx_buffer_info =
-			&tx_ring->tx_buffer_info[tx_ring->next_to_clean];
+		tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
 		pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
 			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
-			   (u64)tx_buffer_info->dma,
-			   tx_buffer_info->length,
-			   tx_buffer_info->next_to_watch,
-			   (u64)tx_buffer_info->time_stamp);
+			   (u64)dma_unmap_addr(tx_buffer, dma),
+			   dma_unmap_len(tx_buffer, len),
+			   tx_buffer->next_to_watch,
+			   (u64)tx_buffer->time_stamp);
 	}
 
 	/* Print TX Rings */
@@ -367,17 +366,17 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 
 		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
 			tx_desc = IXGBE_TX_DESC(tx_ring, i);
-			tx_buffer_info = &tx_ring->tx_buffer_info[i];
+			tx_buffer = &tx_ring->tx_buffer_info[i];
 			u0 = (struct my_u0 *)tx_desc;
 			pr_info("T [0x%03X]    %016llX %016llX %016llX"
 				" %04X  %p %016llX %p", i,
 				le64_to_cpu(u0->a),
 				le64_to_cpu(u0->b),
-				(u64)tx_buffer_info->dma,
-				tx_buffer_info->length,
-				tx_buffer_info->next_to_watch,
-				(u64)tx_buffer_info->time_stamp,
-				tx_buffer_info->skb);
+				(u64)dma_unmap_addr(tx_buffer, dma),
+				dma_unmap_len(tx_buffer, len),
+				tx_buffer->next_to_watch,
+				(u64)tx_buffer->time_stamp,
+				tx_buffer->skb);
 			if (i == tx_ring->next_to_use &&
 				i == tx_ring->next_to_clean)
 				pr_cont(" NTC/U\n");
@@ -389,11 +388,13 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 				pr_cont("\n");
 
 			if (netif_msg_pktdata(adapter) &&
-				tx_buffer_info->dma != 0)
+			    dma_unmap_len(tx_buffer, len) != 0)
 				print_hex_dump(KERN_INFO, "",
 					DUMP_PREFIX_ADDRESS, 16, 1,
-					phys_to_virt(tx_buffer_info->dma),
-					tx_buffer_info->length, true);
+					phys_to_virt(dma_unmap_addr(tx_buffer,
+								    dma)),
+					dma_unmap_len(tx_buffer, len),
+					true);
 		}
 	}
 
@@ -469,17 +470,7 @@ rx_ring_summary:
 					print_hex_dump(KERN_INFO, "",
 					   DUMP_PREFIX_ADDRESS, 16, 1,
 					   phys_to_virt(rx_buffer_info->dma),
-					   rx_ring->rx_buf_len, true);
-
-					if (rx_ring->rx_buf_len
-						< IXGBE_RXBUFFER_2K)
-						print_hex_dump(KERN_INFO, "",
-						  DUMP_PREFIX_ADDRESS, 16, 1,
-						  phys_to_virt(
-						    rx_buffer_info->page_dma +
-						    rx_buffer_info->page_offset
-						  ),
-						  PAGE_SIZE/2, true);
+					   ixgbe_rx_bufsz(rx_ring), true);
 				}
 			}
 
@@ -589,32 +580,26 @@ static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter,
 	}
 }
 
-static inline void ixgbe_unmap_tx_resource(struct ixgbe_ring *ring,
-					   struct ixgbe_tx_buffer *tx_buffer)
+void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring,
+				      struct ixgbe_tx_buffer *tx_buffer)
 {
-	if (tx_buffer->dma) {
-		if (tx_buffer->tx_flags & IXGBE_TX_FLAGS_MAPPED_AS_PAGE)
-			dma_unmap_page(ring->dev,
-			               tx_buffer->dma,
-			               tx_buffer->length,
-			               DMA_TO_DEVICE);
-		else
+	if (tx_buffer->skb) {
+		dev_kfree_skb_any(tx_buffer->skb);
+		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_single(ring->dev,
-			                 tx_buffer->dma,
-			                 tx_buffer->length,
-			                 DMA_TO_DEVICE);
+					 dma_unmap_addr(tx_buffer, dma),
+					 dma_unmap_len(tx_buffer, len),
+					 DMA_TO_DEVICE);
+	} else if (dma_unmap_len(tx_buffer, len)) {
+		dma_unmap_page(ring->dev,
+			       dma_unmap_addr(tx_buffer, dma),
+			       dma_unmap_len(tx_buffer, len),
+			       DMA_TO_DEVICE);
 	}
-	tx_buffer->dma = 0;
-}
-
-void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring,
-				      struct ixgbe_tx_buffer *tx_buffer_info)
-{
-	ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
-	if (tx_buffer_info->skb)
-		dev_kfree_skb_any(tx_buffer_info->skb);
-	tx_buffer_info->skb = NULL;
-	/* tx_buffer_info must be completely set up in the transmit path */
+	tx_buffer->next_to_watch = NULL;
+	tx_buffer->skb = NULL;
+	dma_unmap_len_set(tx_buffer, len, 0);
+	/* tx_buffer must be completely set up in the transmit path */
 }
 
 static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter)
@@ -671,7 +656,7 @@ static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter)
 
 static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring)
 {
-	return ring->tx_stats.completed;
+	return ring->stats.packets;
 }
 
 static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring)
@@ -751,12 +736,16 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 	union ixgbe_adv_tx_desc *tx_desc;
 	unsigned int total_bytes = 0, total_packets = 0;
 	unsigned int budget = q_vector->tx.work_limit;
-	u16 i = tx_ring->next_to_clean;
+	unsigned int i = tx_ring->next_to_clean;
+
+	if (test_bit(__IXGBE_DOWN, &adapter->state))
+		return true;
 
 	tx_buffer = &tx_ring->tx_buffer_info[i];
 	tx_desc = IXGBE_TX_DESC(tx_ring, i);
+	i -= tx_ring->count;
 
-	for (; budget; budget--) {
+	do {
 		union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
 
 		/* if next_to_watch is not set then there is no work pending */
@@ -770,36 +759,65 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 		if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)))
 			break;
 
-		/* count the packet as being completed */
-		tx_ring->tx_stats.completed++;
-
 		/* clear next_to_watch to prevent false hangs */
 		tx_buffer->next_to_watch = NULL;
 
-		do {
-			ixgbe_unmap_tx_resource(tx_ring, tx_buffer);
-			if (likely(tx_desc == eop_desc)) {
-				eop_desc = NULL;
-				dev_kfree_skb_any(tx_buffer->skb);
-				tx_buffer->skb = NULL;
+		/* update the statistics for this packet */
+		total_bytes += tx_buffer->bytecount;
+		total_packets += tx_buffer->gso_segs;
 
-				total_bytes += tx_buffer->bytecount;
-				total_packets += tx_buffer->gso_segs;
-			}
+		/* free the skb */
+		dev_kfree_skb_any(tx_buffer->skb);
+
+		/* unmap skb header data */
+		dma_unmap_single(tx_ring->dev,
+				 dma_unmap_addr(tx_buffer, dma),
+				 dma_unmap_len(tx_buffer, len),
+				 DMA_TO_DEVICE);
 
+		/* clear tx_buffer data */
+		tx_buffer->skb = NULL;
+		dma_unmap_len_set(tx_buffer, len, 0);
+
+		/* unmap remaining buffers */
+		while (tx_desc != eop_desc) {
 			tx_buffer++;
 			tx_desc++;
 			i++;
-			if (unlikely(i == tx_ring->count)) {
-				i = 0;
-
+			if (unlikely(!i)) {
+				i -= tx_ring->count;
 				tx_buffer = tx_ring->tx_buffer_info;
 				tx_desc = IXGBE_TX_DESC(tx_ring, 0);
 			}
 
-		} while (eop_desc);
-	}
+			/* unmap any remaining paged data */
+			if (dma_unmap_len(tx_buffer, len)) {
+				dma_unmap_page(tx_ring->dev,
+					       dma_unmap_addr(tx_buffer, dma),
+					       dma_unmap_len(tx_buffer, len),
+					       DMA_TO_DEVICE);
+				dma_unmap_len_set(tx_buffer, len, 0);
+			}
+		}
+
+		/* move us one more past the eop_desc for start of next pkt */
+		tx_buffer++;
+		tx_desc++;
+		i++;
+		if (unlikely(!i)) {
+			i -= tx_ring->count;
+			tx_buffer = tx_ring->tx_buffer_info;
+			tx_desc = IXGBE_TX_DESC(tx_ring, 0);
+		}
 
+		/* issue prefetch for next Tx descriptor */
+		prefetch(tx_desc);
+
+		/* update budget accounting */
+		budget--;
+	} while (likely(budget));
+
+	i += tx_ring->count;
 	tx_ring->next_to_clean = i;
 	u64_stats_update_begin(&tx_ring->syncp);
 	tx_ring->stats.bytes += total_bytes;
@@ -811,7 +829,6 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 	if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) {
 		/* schedule immediate reset if we believe we hung */
 		struct ixgbe_hw *hw = &adapter->hw;
-		tx_desc = IXGBE_TX_DESC(tx_ring, i);
 		e_err(drv, "Detected Tx Unit Hang\n"
 			"  Tx Queue             <%d>\n"
 			"  TDH, TDT             <%x>, <%x>\n"
@@ -849,9 +866,11 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 		 * sees the new next_to_clean.
 		 */
 		smp_mb();
-		if (__netif_subqueue_stopped(tx_ring->netdev, tx_ring->queue_index) &&
-		    !test_bit(__IXGBE_DOWN, &adapter->state)) {
-			netif_wake_subqueue(tx_ring->netdev, tx_ring->queue_index);
+		if (__netif_subqueue_stopped(tx_ring->netdev,
+					     tx_ring->queue_index)
+		    && !test_bit(__IXGBE_DOWN, &adapter->state)) {
+			netif_wake_subqueue(tx_ring->netdev,
+					    tx_ring->queue_index);
 			++tx_ring->tx_stats.restart_queue;
 		}
 	}
@@ -1006,6 +1025,7 @@ static inline void ixgbe_rx_hash(struct ixgbe_ring *ring,
 		skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
 }
 
+#ifdef IXGBE_FCOE
 /**
  * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type
  * @adapter: address of board private structure
@@ -1024,6 +1044,7 @@ static inline bool ixgbe_rx_is_fcoe(struct ixgbe_adapter *adapter,
 			     IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT)));
 }
 
+#endif /* IXGBE_FCOE */
 /**
  * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum
  * @ring: structure containing ring specific data
@@ -1051,7 +1072,7 @@ static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring,
 		return;
 
 	if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) {
-		u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info;
+		__le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info;
 
 		/*
 		 * 82599 errata, UDP frames with a 0 checksum can be marked as
@@ -1072,6 +1093,9 @@ static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring,
 static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val)
 {
 	rx_ring->next_to_use = val;
+
+	/* update next to alloc since we have filled the ring */
+	rx_ring->next_to_alloc = val;
 	/*
 	 * Force memory writes to complete before letting h/w
 	 * know there are new descriptors to fetch.  (Only
@@ -1082,67 +1106,46 @@ static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val)
 	writel(val, rx_ring->tail);
 }
 
-static bool ixgbe_alloc_mapped_skb(struct ixgbe_ring *rx_ring,
-				   struct ixgbe_rx_buffer *bi)
-{
-	struct sk_buff *skb = bi->skb;
-	dma_addr_t dma = bi->dma;
-
-	if (dma)
-		return true;
-
-	if (likely(!skb)) {
-		skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
-						rx_ring->rx_buf_len);
-		bi->skb = skb;
-		if (!skb) {
-			rx_ring->rx_stats.alloc_rx_buff_failed++;
-			return false;
-		}
-	}
-
-	dma = dma_map_single(rx_ring->dev, skb->data,
-			     rx_ring->rx_buf_len, DMA_FROM_DEVICE);
-
-	if (dma_mapping_error(rx_ring->dev, dma)) {
-		rx_ring->rx_stats.alloc_rx_buff_failed++;
-		return false;
-	}
-
-	bi->dma = dma;
-	return true;
-}
-
 static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring,
 				    struct ixgbe_rx_buffer *bi)
 {
 	struct page *page = bi->page;
-	dma_addr_t page_dma = bi->page_dma;
-	unsigned int page_offset = bi->page_offset ^ (PAGE_SIZE / 2);
+	dma_addr_t dma = bi->dma;
 
-	if (page_dma)
+	/* since we are recycling buffers we should seldom need to alloc */
+	if (likely(dma))
 		return true;
 
-	if (!page) {
-		page = alloc_page(GFP_ATOMIC | __GFP_COLD);
-		bi->page = page;
+	/* alloc new page for storage */
+	if (likely(!page)) {
+		page = alloc_pages(GFP_ATOMIC | __GFP_COLD,
+				   ixgbe_rx_pg_order(rx_ring));
 		if (unlikely(!page)) {
 			rx_ring->rx_stats.alloc_rx_page_failed++;
 			return false;
 		}
+		bi->page = page;
 	}
 
-	page_dma = dma_map_page(rx_ring->dev, page,
-				page_offset, PAGE_SIZE / 2,
-				DMA_FROM_DEVICE);
+	/* map page for use */
+	dma = dma_map_page(rx_ring->dev, page, 0,
+			   ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE);
+
+	/*
+	 * if mapping failed free memory back to system since
+	 * there isn't much point in holding memory we can't use
+	 */
+	if (dma_mapping_error(rx_ring->dev, dma)) {
+		put_page(page);
+		bi->page = NULL;
 
-	if (dma_mapping_error(rx_ring->dev, page_dma)) {
 		rx_ring->rx_stats.alloc_rx_page_failed++;
 		return false;
 	}
 
-	bi->page_dma = page_dma;
-	bi->page_offset = page_offset;
+	bi->dma = dma;
+	bi->page_offset ^= ixgbe_rx_bufsz(rx_ring);
+
 	return true;
 }
 
@@ -1157,30 +1160,23 @@ void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count)
 	struct ixgbe_rx_buffer *bi;
 	u16 i = rx_ring->next_to_use;
 
-	/* nothing to do or no valid netdev defined */
-	if (!cleaned_count || !rx_ring->netdev)
+	/* nothing to do */
+	if (!cleaned_count)
 		return;
 
 	rx_desc = IXGBE_RX_DESC(rx_ring, i);
 	bi = &rx_ring->rx_buffer_info[i];
 	i -= rx_ring->count;
 
-	while (cleaned_count--) {
-		if (!ixgbe_alloc_mapped_skb(rx_ring, bi))
+	do {
+		if (!ixgbe_alloc_mapped_page(rx_ring, bi))
 			break;
 
-		/* Refresh the desc even if buffer_addrs didn't change
-		 * because each write-back erases this info. */
-		if (ring_is_ps_enabled(rx_ring)) {
-			rx_desc->read.hdr_addr = cpu_to_le64(bi->dma);
-
-			if (!ixgbe_alloc_mapped_page(rx_ring, bi))
-				break;
-
-			rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma);
-		} else {
-			rx_desc->read.pkt_addr = cpu_to_le64(bi->dma);
-		}
+		/*
+		 * Refresh the desc even if buffer_addrs didn't change
+		 * because each write-back erases this info.
+		 */
+		rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset);
 
 		rx_desc++;
 		bi++;
@@ -1193,7 +1189,9 @@ void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count)
 
 		/* clear the hdr_addr for the next_to_use descriptor */
 		rx_desc->read.hdr_addr = 0;
-	}
+
+		cleaned_count--;
+	} while (cleaned_count);
 
 	i += rx_ring->count;
 
@@ -1201,90 +1199,6 @@ void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count)
 		ixgbe_release_rx_desc(rx_ring, i);
 }
 
-static inline u16 ixgbe_get_hlen(union ixgbe_adv_rx_desc *rx_desc)
-{
-	/* HW will not DMA in data larger than the given buffer, even if it
-	 * parses the (NFS, of course) header to be larger.  In that case, it
-	 * fills the header buffer and spills the rest into the page.
-	 */
-	u16 hdr_info = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.hdr_info);
-	u16 hlen = (hdr_info &  IXGBE_RXDADV_HDRBUFLEN_MASK) >>
-		    IXGBE_RXDADV_HDRBUFLEN_SHIFT;
-	if (hlen > IXGBE_RX_HDR_SIZE)
-		hlen = IXGBE_RX_HDR_SIZE;
-	return hlen;
-}
-
-/**
- * ixgbe_merge_active_tail - merge active tail into lro skb
- * @tail: pointer to active tail in frag_list
- *
- * This function merges the length and data of an active tail into the
- * skb containing the frag_list.  It resets the tail's pointer to the head,
- * but it leaves the heads pointer to tail intact.
- **/
-static inline struct sk_buff *ixgbe_merge_active_tail(struct sk_buff *tail)
-{
-	struct sk_buff *head = IXGBE_CB(tail)->head;
-
-	if (!head)
-		return tail;
-
-	head->len += tail->len;
-	head->data_len += tail->len;
-	head->truesize += tail->len;
-
-	IXGBE_CB(tail)->head = NULL;
-
-	return head;
-}
-
-/**
- * ixgbe_add_active_tail - adds an active tail into the skb frag_list
- * @head: pointer to the start of the skb
- * @tail: pointer to active tail to add to frag_list
- *
- * This function adds an active tail to the end of the frag list.  This tail
- * will still be receiving data so we cannot yet ad it's stats to the main
- * skb.  That is done via ixgbe_merge_active_tail.
- **/
-static inline void ixgbe_add_active_tail(struct sk_buff *head,
-					 struct sk_buff *tail)
-{
-	struct sk_buff *old_tail = IXGBE_CB(head)->tail;
-
-	if (old_tail) {
-		ixgbe_merge_active_tail(old_tail);
-		old_tail->next = tail;
-	} else {
-		skb_shinfo(head)->frag_list = tail;
-	}
-
-	IXGBE_CB(tail)->head = head;
-	IXGBE_CB(head)->tail = tail;
-}
-
-/**
- * ixgbe_close_active_frag_list - cleanup pointers on a frag_list skb
- * @head: pointer to head of an active frag list
- *
- * This function will clear the frag_tail_tracker pointer on an active
- * frag_list and returns true if the pointer was actually set
- **/
-static inline bool ixgbe_close_active_frag_list(struct sk_buff *head)
-{
-	struct sk_buff *tail = IXGBE_CB(head)->tail;
-
-	if (!tail)
-		return false;
-
-	ixgbe_merge_active_tail(tail);
-
-	IXGBE_CB(head)->tail = NULL;
-
-	return true;
-}
-
 /**
  * ixgbe_get_headlen - determine size of header for RSC/LRO/GRO/FCOE
  * @data: pointer to the start of the headers
@@ -1346,7 +1260,7 @@ static unsigned int ixgbe_get_headlen(unsigned char *data,
 		/* record next protocol */
 		nexthdr = hdr.ipv4->protocol;
 		hdr.network += hlen;
-#ifdef CONFIG_FCOE
+#ifdef IXGBE_FCOE
 	} else if (protocol == __constant_htons(ETH_P_FCOE)) {
 		if ((hdr.network - data) > (max_len - FCOE_HEADER_LEN))
 			return max_len;
@@ -1409,7 +1323,7 @@ static void ixgbe_get_rsc_cnt(struct ixgbe_ring *rx_ring,
 static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring,
 				   struct sk_buff *skb)
 {
-	u16 hdr_len = ixgbe_get_headlen(skb->data, skb_headlen(skb));
+	u16 hdr_len = skb_headlen(skb);
 
 	/* set gso_size to avoid messing up TCP MSS */
 	skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len),
@@ -1473,149 +1387,346 @@ static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector,
 		netif_rx(skb);
 }
 
+/**
+ * ixgbe_is_non_eop - process handling of non-EOP buffers
+ * @rx_ring: Rx ring being processed
+ * @rx_desc: Rx descriptor for current buffer
+ * @skb: Current socket buffer containing buffer in progress
+ *
+ * This function updates next to clean.  If the buffer is an EOP buffer
+ * this function exits returning false, otherwise it will place the
+ * sk_buff in the next buffer to be chained and return true indicating
+ * that this is in fact a non-EOP buffer.
+ **/
+static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring,
+			     union ixgbe_adv_rx_desc *rx_desc,
+			     struct sk_buff *skb)
+{
+	u32 ntc = rx_ring->next_to_clean + 1;
+
+	/* fetch, update, and store next to clean */
+	ntc = (ntc < rx_ring->count) ? ntc : 0;
+	rx_ring->next_to_clean = ntc;
+
+	prefetch(IXGBE_RX_DESC(rx_ring, ntc));
+
+	if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)))
+		return false;
+
+	/* append_cnt indicates packet is RSC, if so fetch nextp */
+	if (IXGBE_CB(skb)->append_cnt) {
+		ntc = le32_to_cpu(rx_desc->wb.upper.status_error);
+		ntc &= IXGBE_RXDADV_NEXTP_MASK;
+		ntc >>= IXGBE_RXDADV_NEXTP_SHIFT;
+	}
+
+	/* place skb in next buffer to be received */
+	rx_ring->rx_buffer_info[ntc].skb = skb;
+	rx_ring->rx_stats.non_eop_descs++;
+
+	return true;
+}
+
+/**
+ * ixgbe_cleanup_headers - Correct corrupted or empty headers
+ * @rx_ring: rx descriptor ring packet is being transacted on
+ * @rx_desc: pointer to the EOP Rx descriptor
+ * @skb: pointer to current skb being fixed
+ *
+ * Check for corrupted packet headers caused by senders on the local L2
+ * embedded NIC switch not setting up their Tx Descriptors right.  These
+ * should be very rare.
+ *
+ * Also address the case where we are pulling data in on pages only
+ * and as such no data is present in the skb header.
+ *
+ * In addition if skb is not at least 60 bytes we need to pad it so that
+ * it is large enough to qualify as a valid Ethernet frame.
+ *
+ * Returns true if an error was encountered and skb was freed.
+ **/
+static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
+				  union ixgbe_adv_rx_desc *rx_desc,
+				  struct sk_buff *skb)
+{
+	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
+	struct net_device *netdev = rx_ring->netdev;
+	unsigned char *va;
+	unsigned int pull_len;
+
+	/* if the page was released unmap it, else just sync our portion */
+	if (unlikely(IXGBE_CB(skb)->page_released)) {
+		dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma,
+			       ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE);
+		IXGBE_CB(skb)->page_released = false;
+	} else {
+		dma_sync_single_range_for_cpu(rx_ring->dev,
+					      IXGBE_CB(skb)->dma,
+					      frag->page_offset,
+					      ixgbe_rx_bufsz(rx_ring),
+					      DMA_FROM_DEVICE);
+	}
+	IXGBE_CB(skb)->dma = 0;
+
+	/* verify that the packet does not have any known errors */
+	if (unlikely(ixgbe_test_staterr(rx_desc,
+					IXGBE_RXDADV_ERR_FRAME_ERR_MASK) &&
+	    !(netdev->features & NETIF_F_RXALL))) {
+		dev_kfree_skb_any(skb);
+		return true;
+	}
+
+	/*
+	 * it is valid to use page_address instead of kmap since we are
+	 * working with pages allocated out of the lomem pool per
+	 * alloc_page(GFP_ATOMIC)
+	 */
+	va = skb_frag_address(frag);
+
+	/*
+	 * we need the header to contain the greater of either ETH_HLEN or
+	 * 60 bytes if the skb->len is less than 60 for skb_pad.
+	 */
+	pull_len = skb_frag_size(frag);
+	if (pull_len > 256)
+		pull_len = ixgbe_get_headlen(va, pull_len);
+
+	/* align pull length to size of long to optimize memcpy performance */
+	skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
+
+	/* update all of the pointers */
+	skb_frag_size_sub(frag, pull_len);
+	frag->page_offset += pull_len;
+	skb->data_len -= pull_len;
+	skb->tail += pull_len;
+
+	/*
+	 * if we sucked the frag empty then we should free it,
+	 * if there are other frags here something is screwed up in hardware
+	 */
+	if (skb_frag_size(frag) == 0) {
+		BUG_ON(skb_shinfo(skb)->nr_frags != 1);
+		skb_shinfo(skb)->nr_frags = 0;
+		__skb_frag_unref(frag);
+		skb->truesize -= ixgbe_rx_bufsz(rx_ring);
+	}
+
+	/* if skb_pad returns an error the skb was freed */
+	if (unlikely(skb->len < 60)) {
+		int pad_len = 60 - skb->len;
+
+		if (skb_pad(skb, pad_len))
+			return true;
+		__skb_put(skb, pad_len);
+	}
+
+	return false;
+}
+
+/**
+ * ixgbe_can_reuse_page - determine if we can reuse a page
+ * @rx_buffer: pointer to rx_buffer containing the page we want to reuse
+ *
+ * Returns true if page can be reused in another Rx buffer
+ **/
+static inline bool ixgbe_can_reuse_page(struct ixgbe_rx_buffer *rx_buffer)
+{
+	struct page *page = rx_buffer->page;
+
+	/* if we are only owner of page and it is local we can reuse it */
+	return likely(page_count(page) == 1) &&
+	       likely(page_to_nid(page) == numa_node_id());
+}
+
+/**
+ * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring
+ * @rx_ring: rx descriptor ring to store buffers on
+ * @old_buff: donor buffer to have page reused
+ *
+ * Syncronizes page for reuse by the adapter
+ **/
+static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring,
+				struct ixgbe_rx_buffer *old_buff)
+{
+	struct ixgbe_rx_buffer *new_buff;
+	u16 nta = rx_ring->next_to_alloc;
+	u16 bufsz = ixgbe_rx_bufsz(rx_ring);
+
+	new_buff = &rx_ring->rx_buffer_info[nta];
+
+	/* update, and store next to alloc */
+	nta++;
+	rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
+
+	/* transfer page from old buffer to new buffer */
+	new_buff->page = old_buff->page;
+	new_buff->dma = old_buff->dma;
+
+	/* flip page offset to other buffer and store to new_buff */
+	new_buff->page_offset = old_buff->page_offset ^ bufsz;
+
+	/* sync the buffer for use by the device */
+	dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma,
+					 new_buff->page_offset, bufsz,
+					 DMA_FROM_DEVICE);
+
+	/* bump ref count on page before it is given to the stack */
+	get_page(new_buff->page);
+}
+
+/**
+ * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff
+ * @rx_ring: rx descriptor ring to transact packets on
+ * @rx_buffer: buffer containing page to add
+ * @rx_desc: descriptor containing length of buffer written by hardware
+ * @skb: sk_buff to place the data into
+ *
+ * This function is based on skb_add_rx_frag.  I would have used that
+ * function however it doesn't handle the truesize case correctly since we
+ * are allocating more memory than might be used for a single receive.
+ **/
+static void ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring,
+			      struct ixgbe_rx_buffer *rx_buffer,
+			      struct sk_buff *skb, int size)
+{
+	skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
+			   rx_buffer->page, rx_buffer->page_offset,
+			   size);
+	skb->len += size;
+	skb->data_len += size;
+	skb->truesize += ixgbe_rx_bufsz(rx_ring);
+}
+
+/**
+ * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
+ * @q_vector: structure containing interrupt and ring information
+ * @rx_ring: rx descriptor ring to transact packets on
+ * @budget: Total limit on number of packets to process
+ *
+ * This function provides a "bounce buffer" approach to Rx interrupt
+ * processing.  The advantage to this is that on systems that have
+ * expensive overhead for IOMMU access this provides a means of avoiding
+ * it by maintaining the mapping of the page to the syste.
+ *
+ * Returns true if all work is completed without reaching budget
+ **/
 static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 			       struct ixgbe_ring *rx_ring,
 			       int budget)
 {
-	union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
-	struct ixgbe_rx_buffer *rx_buffer_info;
-	struct sk_buff *skb;
 	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
-	const int current_node = numa_node_id();
 #ifdef IXGBE_FCOE
 	struct ixgbe_adapter *adapter = q_vector->adapter;
 	int ddp_bytes = 0;
 #endif /* IXGBE_FCOE */
-	u16 i;
-	u16 cleaned_count = 0;
+	u16 cleaned_count = ixgbe_desc_unused(rx_ring);
 
-	i = rx_ring->next_to_clean;
-	rx_desc = IXGBE_RX_DESC(rx_ring, i);
+	do {
+		struct ixgbe_rx_buffer *rx_buffer;
+		union ixgbe_adv_rx_desc *rx_desc;
+		struct sk_buff *skb;
+		struct page *page;
+		u16 ntc;
 
-	while (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD)) {
-		u32 upper_len = 0;
+		/* return some buffers to hardware, one at a time is too slow */
+		if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) {
+			ixgbe_alloc_rx_buffers(rx_ring, cleaned_count);
+			cleaned_count = 0;
+		}
 
-		rmb(); /* read descriptor and rx_buffer_info after status DD */
+		ntc = rx_ring->next_to_clean;
+		rx_desc = IXGBE_RX_DESC(rx_ring, ntc);
+		rx_buffer = &rx_ring->rx_buffer_info[ntc];
 
-		rx_buffer_info = &rx_ring->rx_buffer_info[i];
+		if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD))
+			break;
 
-		skb = rx_buffer_info->skb;
-		rx_buffer_info->skb = NULL;
-		prefetch(skb->data);
+		/*
+		 * This memory barrier is needed to keep us from reading
+		 * any other fields out of the rx_desc until we know the
+		 * RXD_STAT_DD bit is set
+		 */
+		rmb();
 
-		/* linear means we are building an skb from multiple pages */
-		if (!skb_is_nonlinear(skb)) {
-			u16 hlen;
-			if (ring_is_ps_enabled(rx_ring)) {
-				hlen = ixgbe_get_hlen(rx_desc);
-				upper_len = le16_to_cpu(rx_desc->wb.upper.length);
-			} else {
-				hlen = le16_to_cpu(rx_desc->wb.upper.length);
+		page = rx_buffer->page;
+		prefetchw(page);
+
+		skb = rx_buffer->skb;
+
+		if (likely(!skb)) {
+			void *page_addr = page_address(page) +
+					  rx_buffer->page_offset;
+
+			/* prefetch first cache line of first page */
+			prefetch(page_addr);
+#if L1_CACHE_BYTES < 128
+			prefetch(page_addr + L1_CACHE_BYTES);
+#endif
+
+			/* allocate a skb to store the frags */
+			skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
+							IXGBE_RX_HDR_SIZE);
+			if (unlikely(!skb)) {
+				rx_ring->rx_stats.alloc_rx_buff_failed++;
+				break;
 			}
 
-			skb_put(skb, hlen);
+			/*
+			 * we will be copying header into skb->data in
+			 * pskb_may_pull so it is in our interest to prefetch
+			 * it now to avoid a possible cache miss
+			 */
+			prefetchw(skb->data);
 
 			/*
 			 * Delay unmapping of the first packet. It carries the
 			 * header information, HW may still access the header
-			 * after writeback.  Only unmap it when EOP is reached
+			 * after the writeback.  Only unmap it when EOP is
+			 * reached
 			 */
-			if (!IXGBE_CB(skb)->head) {
-				IXGBE_CB(skb)->delay_unmap = true;
-				IXGBE_CB(skb)->dma = rx_buffer_info->dma;
-			} else {
-				skb = ixgbe_merge_active_tail(skb);
-				dma_unmap_single(rx_ring->dev,
-						 rx_buffer_info->dma,
-						 rx_ring->rx_buf_len,
-						 DMA_FROM_DEVICE);
-			}
-			rx_buffer_info->dma = 0;
+			IXGBE_CB(skb)->dma = rx_buffer->dma;
 		} else {
-			/* assume packet split since header is unmapped */
-			upper_len = le16_to_cpu(rx_desc->wb.upper.length);
+			/* we are reusing so sync this buffer for CPU use */
+			dma_sync_single_range_for_cpu(rx_ring->dev,
+						      rx_buffer->dma,
+						      rx_buffer->page_offset,
+						      ixgbe_rx_bufsz(rx_ring),
+						      DMA_FROM_DEVICE);
 		}
 
-		if (upper_len) {
-			dma_unmap_page(rx_ring->dev,
-				       rx_buffer_info->page_dma,
-				       PAGE_SIZE / 2,
-				       DMA_FROM_DEVICE);
-			rx_buffer_info->page_dma = 0;
-			skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
-					   rx_buffer_info->page,
-					   rx_buffer_info->page_offset,
-					   upper_len);
-
-			if ((page_count(rx_buffer_info->page) == 1) &&
-			    (page_to_nid(rx_buffer_info->page) == current_node))
-				get_page(rx_buffer_info->page);
-			else
-				rx_buffer_info->page = NULL;
+		/* pull page into skb */
+		ixgbe_add_rx_frag(rx_ring, rx_buffer, skb,
+				  le16_to_cpu(rx_desc->wb.upper.length));
 
-			skb->len += upper_len;
-			skb->data_len += upper_len;
-			skb->truesize += PAGE_SIZE / 2;
+		if (ixgbe_can_reuse_page(rx_buffer)) {
+			/* hand second half of page back to the ring */
+			ixgbe_reuse_rx_page(rx_ring, rx_buffer);
+		} else if (IXGBE_CB(skb)->dma == rx_buffer->dma) {
+			/* the page has been released from the ring */
+			IXGBE_CB(skb)->page_released = true;
+		} else {
+			/* we are not reusing the buffer so unmap it */
+			dma_unmap_page(rx_ring->dev, rx_buffer->dma,
+				       ixgbe_rx_pg_size(rx_ring),
+				       DMA_FROM_DEVICE);
 		}
 
-		ixgbe_get_rsc_cnt(rx_ring, rx_desc, skb);
+		/* clear contents of buffer_info */
+		rx_buffer->skb = NULL;
+		rx_buffer->dma = 0;
+		rx_buffer->page = NULL;
 
-		i++;
-		if (i == rx_ring->count)
-			i = 0;
+		ixgbe_get_rsc_cnt(rx_ring, rx_desc, skb);
 
-		next_rxd = IXGBE_RX_DESC(rx_ring, i);
-		prefetch(next_rxd);
 		cleaned_count++;
 
-		if ((!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) {
-			struct ixgbe_rx_buffer *next_buffer;
-			u32 nextp;
-
-			if (IXGBE_CB(skb)->append_cnt) {
-				nextp = le32_to_cpu(
-						rx_desc->wb.upper.status_error);
-				nextp >>= IXGBE_RXDADV_NEXTP_SHIFT;
-			} else {
-				nextp = i;
-			}
-
-			next_buffer = &rx_ring->rx_buffer_info[nextp];
-
-			if (ring_is_ps_enabled(rx_ring)) {
-				rx_buffer_info->skb = next_buffer->skb;
-				rx_buffer_info->dma = next_buffer->dma;
-				next_buffer->skb = skb;
-				next_buffer->dma = 0;
-			} else {
-				struct sk_buff *next_skb = next_buffer->skb;
-				ixgbe_add_active_tail(skb, next_skb);
-				IXGBE_CB(next_skb)->head = skb;
-			}
-			rx_ring->rx_stats.non_eop_descs++;
-			goto next_desc;
-		}
-
-		dma_unmap_single(rx_ring->dev,
-				 IXGBE_CB(skb)->dma,
-				 rx_ring->rx_buf_len,
-				 DMA_FROM_DEVICE);
-		IXGBE_CB(skb)->dma = 0;
-		IXGBE_CB(skb)->delay_unmap = false;
-
-		if (ixgbe_close_active_frag_list(skb) &&
-		    !IXGBE_CB(skb)->append_cnt) {
-			/* if we got here without RSC the packet is invalid */
-			dev_kfree_skb_any(skb);
-			goto next_desc;
-		}
+		/* place incomplete frames back on ring for completion */
+		if (ixgbe_is_non_eop(rx_ring, rx_desc, skb))
+			continue;
 
-		/* ERR_MASK will only have valid bits if EOP set */
-		if (unlikely(ixgbe_test_staterr(rx_desc,
-					    IXGBE_RXDADV_ERR_FRAME_ERR_MASK))) {
-			dev_kfree_skb_any(skb);
-			goto next_desc;
-		}
+		/* verify the packet layout is correct */
+		if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb))
+			continue;
 
 		/* probably a little skewed due to removing CRC */
 		total_rx_bytes += skb->len;
@@ -1630,32 +1741,16 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 			ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb);
 			if (!ddp_bytes) {
 				dev_kfree_skb_any(skb);
-				goto next_desc;
+				continue;
 			}
 		}
+
 #endif /* IXGBE_FCOE */
 		ixgbe_rx_skb(q_vector, skb);
 
+		/* update budget accounting */
 		budget--;
-next_desc:
-		if (!budget)
-			break;
-
-		/* return some buffers to hardware, one at a time is too slow */
-		if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) {
-			ixgbe_alloc_rx_buffers(rx_ring, cleaned_count);
-			cleaned_count = 0;
-		}
-
-		/* use prefetched values */
-		rx_desc = next_rxd;
-	}
-
-	rx_ring->next_to_clean = i;
-	cleaned_count = ixgbe_desc_unused(rx_ring);
-
-	if (cleaned_count)
-		ixgbe_alloc_rx_buffers(rx_ring, cleaned_count);
+	} while (likely(budget));
 
 #ifdef IXGBE_FCOE
 	/* include DDPed FCoE data */
@@ -1670,8 +1765,8 @@ next_desc:
 		total_rx_bytes += ddp_bytes;
 		total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss);
 	}
-#endif /* IXGBE_FCOE */
 
+#endif /* IXGBE_FCOE */
 	u64_stats_update_begin(&rx_ring->syncp);
 	rx_ring->stats.packets += total_rx_packets;
 	rx_ring->stats.bytes += total_rx_bytes;
@@ -1679,6 +1774,9 @@ next_desc:
 	q_vector->rx.total_packets += total_rx_packets;
 	q_vector->rx.total_bytes += total_rx_bytes;
 
+	if (cleaned_count)
+		ixgbe_alloc_rx_buffers(rx_ring, cleaned_count);
+
 	return !!budget;
 }
 
@@ -2634,18 +2732,12 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter,
 	srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
 		  IXGBE_SRRCTL_BSIZEHDR_MASK;
 
-	if (ring_is_ps_enabled(rx_ring)) {
-#if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER
-		srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
+#if PAGE_SIZE > IXGBE_MAX_RXBUFFER
+	srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
 #else
-		srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
+	srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
 #endif
-		srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
-	} else {
-		srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >>
-			  IXGBE_SRRCTL_BSIZEPKT_SHIFT;
-		srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
-	}
+	srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
 
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(reg_idx), srrctl);
 }
@@ -2728,13 +2820,11 @@ static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter,
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 rscctrl;
-	int rx_buf_len;
 	u8 reg_idx = ring->reg_idx;
 
 	if (!ring_is_rsc_enabled(ring))
 		return;
 
-	rx_buf_len = ring->rx_buf_len;
 	rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx));
 	rscctrl |= IXGBE_RSCCTL_RSCEN;
 	/*
@@ -2742,24 +2832,13 @@ static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter,
 	 * total size of max desc * buf_len is not greater
 	 * than 65536
 	 */
-	if (ring_is_ps_enabled(ring)) {
-#if (PAGE_SIZE < 8192)
-		rscctrl |= IXGBE_RSCCTL_MAXDESC_16;
-#elif (PAGE_SIZE < 16384)
-		rscctrl |= IXGBE_RSCCTL_MAXDESC_8;
-#elif (PAGE_SIZE < 32768)
-		rscctrl |= IXGBE_RSCCTL_MAXDESC_4;
+#if (PAGE_SIZE <= 8192)
+	rscctrl |= IXGBE_RSCCTL_MAXDESC_16;
+#elif (PAGE_SIZE <= 16384)
+	rscctrl |= IXGBE_RSCCTL_MAXDESC_8;
 #else
-		rscctrl |= IXGBE_RSCCTL_MAXDESC_1;
+	rscctrl |= IXGBE_RSCCTL_MAXDESC_4;
 #endif
-	} else {
-		if (rx_buf_len <= IXGBE_RXBUFFER_4K)
-			rscctrl |= IXGBE_RSCCTL_MAXDESC_16;
-		else if (rx_buf_len <= IXGBE_RXBUFFER_8K)
-			rscctrl |= IXGBE_RSCCTL_MAXDESC_8;
-		else
-			rscctrl |= IXGBE_RSCCTL_MAXDESC_4;
-	}
 	IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl);
 }
 
@@ -2976,23 +3055,10 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter)
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
 	int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
-	int rx_buf_len;
 	struct ixgbe_ring *rx_ring;
 	int i;
 	u32 mhadd, hlreg0;
 
-	/* Decide whether to use packet split mode or not */
-	/* On by default */
-	adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED;
-
-	/* Do not use packet split if we're in SR-IOV Mode */
-	if (adapter->num_vfs)
-		adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED;
-
-	/* Disable packet split due to 82599 erratum #45 */
-	if (hw->mac.type == ixgbe_mac_82599EB)
-		adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED;
-
 #ifdef IXGBE_FCOE
 	/* adjust max frame to be able to do baby jumbo for FCoE */
 	if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) &&
@@ -3011,27 +3077,6 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter)
 	/* MHADD will allow an extra 4 bytes past for vlan tagged frames */
 	max_frame += VLAN_HLEN;
 
-	/* Set the RX buffer length according to the mode */
-	if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) {
-		rx_buf_len = IXGBE_RX_HDR_SIZE;
-	} else {
-		if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) &&
-		    (netdev->mtu <= ETH_DATA_LEN))
-			rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE;
-		/*
-		 * Make best use of allocation by using all but 1K of a
-		 * power of 2 allocation that will be used for skb->head.
-		 */
-		else if (max_frame <= IXGBE_RXBUFFER_3K)
-			rx_buf_len = IXGBE_RXBUFFER_3K;
-		else if (max_frame <= IXGBE_RXBUFFER_7K)
-			rx_buf_len = IXGBE_RXBUFFER_7K;
-		else if (max_frame <= IXGBE_RXBUFFER_15K)
-			rx_buf_len = IXGBE_RXBUFFER_15K;
-		else
-			rx_buf_len = IXGBE_MAX_RXBUFFER;
-	}
-
 	hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
 	/* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */
 	hlreg0 |= IXGBE_HLREG0_JUMBOEN;
@@ -3043,32 +3088,16 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter)
 	 */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		rx_ring = adapter->rx_ring[i];
-		rx_ring->rx_buf_len = rx_buf_len;
-
-		if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED)
-			set_ring_ps_enabled(rx_ring);
-		else
-			clear_ring_ps_enabled(rx_ring);
-
 		if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)
 			set_ring_rsc_enabled(rx_ring);
 		else
 			clear_ring_rsc_enabled(rx_ring);
-
 #ifdef IXGBE_FCOE
 		if (netdev->features & NETIF_F_FCOE_MTU) {
 			struct ixgbe_ring_feature *f;
 			f = &adapter->ring_feature[RING_F_FCOE];
-			if ((i >= f->mask) && (i < f->mask + f->indices)) {
-				clear_ring_ps_enabled(rx_ring);
-				if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE)
-					rx_ring->rx_buf_len =
-						IXGBE_FCOE_JUMBO_FRAME_SIZE;
-			} else if (!ring_is_rsc_enabled(rx_ring) &&
-				   !ring_is_ps_enabled(rx_ring)) {
-				rx_ring->rx_buf_len =
-						IXGBE_FCOE_JUMBO_FRAME_SIZE;
-			}
+			if ((i >= f->mask) && (i < f->mask + f->indices))
+				set_bit(__IXGBE_RX_FCOE_BUFSZ, &rx_ring->state);
 		}
 #endif /* IXGBE_FCOE */
 	}
@@ -3342,6 +3371,7 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 	fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
 
 	/* set all bits that we expect to always be set */
+	fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */
 	fctrl |= IXGBE_FCTRL_BAM;
 	fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */
 	fctrl |= IXGBE_FCTRL_PMCF;
@@ -3390,6 +3420,18 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 		IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr);
 	}
 
+	/* This is useful for sniffing bad packets. */
+	if (adapter->netdev->features & NETIF_F_RXALL) {
+		/* UPE and MPE will be handled by normal PROMISC logic
+		 * in e1000e_set_rx_mode */
+		fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */
+			  IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */
+			  IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */
+
+		fctrl &= ~(IXGBE_FCTRL_DPF);
+		/* NOTE:  VLAN filtering is disabled by setting PROMISC */
+	}
+
 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
 
 	if (netdev->features & NETIF_F_HW_VLAN_RX)
@@ -3977,6 +4019,27 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
 }
 
 /**
+ * ixgbe_init_rx_page_offset - initialize page offset values for Rx buffers
+ * @rx_ring: ring to setup
+ *
+ * On many IA platforms the L1 cache has a critical stride of 4K, this
+ * results in each receive buffer starting in the same cache set.  To help
+ * reduce the pressure on this cache set we can interleave the offsets so
+ * that only every other buffer will be in the same cache set.
+ **/
+static void ixgbe_init_rx_page_offset(struct ixgbe_ring *rx_ring)
+{
+	struct ixgbe_rx_buffer *rx_buffer = rx_ring->rx_buffer_info;
+	u16 i;
+
+	for (i = 0; i < rx_ring->count; i += 2) {
+		rx_buffer[0].page_offset = 0;
+		rx_buffer[1].page_offset = ixgbe_rx_bufsz(rx_ring);
+		rx_buffer = &rx_buffer[2];
+	}
+}
+
+/**
  * ixgbe_clean_rx_ring - Free Rx Buffers per Queue
  * @rx_ring: ring to free buffers from
  **/
@@ -3992,49 +4055,40 @@ static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring)
 
 	/* Free all the Rx ring sk_buffs */
 	for (i = 0; i < rx_ring->count; i++) {
-		struct ixgbe_rx_buffer *rx_buffer_info;
-
-		rx_buffer_info = &rx_ring->rx_buffer_info[i];
-		if (rx_buffer_info->dma) {
-			dma_unmap_single(rx_ring->dev, rx_buffer_info->dma,
-					 rx_ring->rx_buf_len,
-					 DMA_FROM_DEVICE);
-			rx_buffer_info->dma = 0;
-		}
-		if (rx_buffer_info->skb) {
-			struct sk_buff *skb = rx_buffer_info->skb;
-			rx_buffer_info->skb = NULL;
-			/* We need to clean up RSC frag lists */
-			skb = ixgbe_merge_active_tail(skb);
-			ixgbe_close_active_frag_list(skb);
-			if (IXGBE_CB(skb)->delay_unmap) {
-				dma_unmap_single(dev,
-						 IXGBE_CB(skb)->dma,
-						 rx_ring->rx_buf_len,
-						 DMA_FROM_DEVICE);
-				IXGBE_CB(skb)->dma = 0;
-				IXGBE_CB(skb)->delay_unmap = false;
+		struct ixgbe_rx_buffer *rx_buffer;
+
+		rx_buffer = &rx_ring->rx_buffer_info[i];
+		if (rx_buffer->skb) {
+			struct sk_buff *skb = rx_buffer->skb;
+			if (IXGBE_CB(skb)->page_released) {
+				dma_unmap_page(dev,
+					       IXGBE_CB(skb)->dma,
+					       ixgbe_rx_bufsz(rx_ring),
+					       DMA_FROM_DEVICE);
+				IXGBE_CB(skb)->page_released = false;
 			}
 			dev_kfree_skb(skb);
 		}
-		if (!rx_buffer_info->page)
-			continue;
-		if (rx_buffer_info->page_dma) {
-			dma_unmap_page(dev, rx_buffer_info->page_dma,
-				       PAGE_SIZE / 2, DMA_FROM_DEVICE);
-			rx_buffer_info->page_dma = 0;
-		}
-		put_page(rx_buffer_info->page);
-		rx_buffer_info->page = NULL;
-		rx_buffer_info->page_offset = 0;
+		rx_buffer->skb = NULL;
+		if (rx_buffer->dma)
+			dma_unmap_page(dev, rx_buffer->dma,
+				       ixgbe_rx_pg_size(rx_ring),
+				       DMA_FROM_DEVICE);
+		rx_buffer->dma = 0;
+		if (rx_buffer->page)
+			put_page(rx_buffer->page);
+		rx_buffer->page = NULL;
 	}
 
 	size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
 	memset(rx_ring->rx_buffer_info, 0, size);
 
+	ixgbe_init_rx_page_offset(rx_ring);
+
 	/* Zero out the descriptor ring */
 	memset(rx_ring->desc, 0, rx_ring->size);
 
+	rx_ring->next_to_alloc = 0;
 	rx_ring->next_to_clean = 0;
 	rx_ring->next_to_use = 0;
 }
@@ -5398,6 +5452,8 @@ int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
 	rx_ring->next_to_clean = 0;
 	rx_ring->next_to_use = 0;
 
+	ixgbe_init_rx_page_offset(rx_ring);
+
 	return 0;
 err:
 	vfree(rx_ring->rx_buffer_info);
@@ -5517,20 +5573,24 @@ static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter)
 static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	struct ixgbe_hw *hw = &adapter->hw;
 	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 
 	/* MTU < 68 is an error and causes problems on some kernels */
-	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED &&
-	    hw->mac.type != ixgbe_mac_X540) {
-		if ((new_mtu < 68) || (max_frame > MAXIMUM_ETHERNET_VLAN_SIZE))
-			return -EINVAL;
-	} else {
-		if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
+	if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
+		return -EINVAL;
+
+	/*
+	 * For 82599EB we cannot allow PF to change MTU greater than 1500
+	 * in SR-IOV mode as it may cause buffer overruns in guest VFs that
+	 * don't allocate and chain buffers correctly.
+	 */
+	if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
+	    (adapter->hw.mac.type == ixgbe_mac_82599EB) &&
+	    (max_frame > MAXIMUM_ETHERNET_VLAN_SIZE))
 			return -EINVAL;
-	}
 
 	e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu);
+
 	/* must set new MTU before calling down or up */
 	netdev->mtu = new_mtu;
 
@@ -6523,9 +6583,11 @@ void ixgbe_tx_ctxtdesc(struct ixgbe_ring *tx_ring, u32 vlan_macip_lens,
 	context_desc->mss_l4len_idx	= cpu_to_le32(mss_l4len_idx);
 }
 
-static int ixgbe_tso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
+static int ixgbe_tso(struct ixgbe_ring *tx_ring,
+		     struct ixgbe_tx_buffer *first,
 		     u32 tx_flags, __be16 protocol, u8 *hdr_len)
 {
+	struct sk_buff *skb = first->skb;
 	int err;
 	u32 vlan_macip_lens, type_tucmd;
 	u32 mss_l4len_idx, l4len;
@@ -6559,9 +6621,14 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
 				     0, IPPROTO_TCP, 0);
 	}
 
+	/* compute header lengths */
 	l4len = tcp_hdrlen(skb);
 	*hdr_len = skb_transport_offset(skb) + l4len;
 
+	/* update gso size and bytecount with header size */
+	first->gso_segs = skb_shinfo(skb)->gso_segs;
+	first->bytecount += (first->gso_segs - 1) * *hdr_len;
+
 	/* mss_l4len_id: use 1 as index for TSO */
 	mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT;
 	mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
@@ -6579,9 +6646,10 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
 }
 
 static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
-			  struct sk_buff *skb, u32 tx_flags,
-			  __be16 protocol)
+			  struct ixgbe_tx_buffer *first,
+			  u32 tx_flags, __be16 protocol)
 {
+	struct sk_buff *skb = first->skb;
 	u32 vlan_macip_lens = 0;
 	u32 mss_l4len_idx = 0;
 	u32 type_tucmd = 0;
@@ -6658,7 +6726,7 @@ static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
 
 	/* set segmentation enable bits for TSO/FSO */
 #ifdef IXGBE_FCOE
-	if ((tx_flags & IXGBE_TX_FLAGS_TSO) || (tx_flags & IXGBE_TX_FLAGS_FSO))
+	if (tx_flags & (IXGBE_TX_FLAGS_TSO | IXGBE_TX_FLAGS_FSO))
 #else
 	if (tx_flags & IXGBE_TX_FLAGS_TSO)
 #endif
@@ -6667,201 +6735,193 @@ static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
 	return cmd_type;
 }
 
-static __le32 ixgbe_tx_olinfo_status(u32 tx_flags, unsigned int paylen)
+static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc,
+				   u32 tx_flags, unsigned int paylen)
 {
-	__le32 olinfo_status =
-		cpu_to_le32(paylen << IXGBE_ADVTXD_PAYLEN_SHIFT);
-
-	if (tx_flags & IXGBE_TX_FLAGS_TSO) {
-		olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM |
-					    (1 << IXGBE_ADVTXD_IDX_SHIFT));
-		/* enble IPv4 checksum for TSO */
-		if (tx_flags & IXGBE_TX_FLAGS_IPV4)
-			olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM);
-	}
+	__le32 olinfo_status = cpu_to_le32(paylen << IXGBE_ADVTXD_PAYLEN_SHIFT);
 
 	/* enable L4 checksum for TSO and TX checksum offload */
 	if (tx_flags & IXGBE_TX_FLAGS_CSUM)
 		olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM);
 
-#ifdef IXGBE_FCOE
-	/* use index 1 context for FCOE/FSO */
-	if (tx_flags & IXGBE_TX_FLAGS_FCOE)
-		olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC |
-					    (1 << IXGBE_ADVTXD_IDX_SHIFT));
+	/* enble IPv4 checksum for TSO */
+	if (tx_flags & IXGBE_TX_FLAGS_IPV4)
+		olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM);
 
+	/* use index 1 context for TSO/FSO/FCOE */
+#ifdef IXGBE_FCOE
+	if (tx_flags & (IXGBE_TX_FLAGS_TSO | IXGBE_TX_FLAGS_FCOE))
+#else
+	if (tx_flags & IXGBE_TX_FLAGS_TSO)
 #endif
+		olinfo_status |= cpu_to_le32(1 << IXGBE_ADVTXD_IDX_SHIFT);
+
 	/*
 	 * Check Context must be set if Tx switch is enabled, which it
 	 * always is for case where virtual functions are running
 	 */
+#ifdef IXGBE_FCOE
+	if (tx_flags & (IXGBE_TX_FLAGS_TXSW | IXGBE_TX_FLAGS_FCOE))
+#else
 	if (tx_flags & IXGBE_TX_FLAGS_TXSW)
+#endif
 		olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC);
 
-	return olinfo_status;
+	tx_desc->read.olinfo_status = olinfo_status;
 }
 
 #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
 		       IXGBE_TXD_CMD_RS)
 
 static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
-			 struct sk_buff *skb,
 			 struct ixgbe_tx_buffer *first,
 			 u32 tx_flags,
 			 const u8 hdr_len)
 {
-	struct device *dev = tx_ring->dev;
-	struct ixgbe_tx_buffer *tx_buffer_info;
-	union ixgbe_adv_tx_desc *tx_desc;
 	dma_addr_t dma;
-	__le32 cmd_type, olinfo_status;
-	struct skb_frag_struct *frag;
-	unsigned int f = 0;
+	struct sk_buff *skb = first->skb;
+	struct ixgbe_tx_buffer *tx_buffer;
+	union ixgbe_adv_tx_desc *tx_desc;
+	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
 	unsigned int data_len = skb->data_len;
 	unsigned int size = skb_headlen(skb);
-	u32 offset = 0;
-	u32 paylen = skb->len - hdr_len;
+	unsigned int paylen = skb->len - hdr_len;
+	__le32 cmd_type;
 	u16 i = tx_ring->next_to_use;
-	u16 gso_segs;
+
+	tx_desc = IXGBE_TX_DESC(tx_ring, i);
+
+	ixgbe_tx_olinfo_status(tx_desc, tx_flags, paylen);
+	cmd_type = ixgbe_tx_cmd_type(tx_flags);
 
 #ifdef IXGBE_FCOE
 	if (tx_flags & IXGBE_TX_FLAGS_FCOE) {
-		if (data_len >= sizeof(struct fcoe_crc_eof)) {
-			data_len -= sizeof(struct fcoe_crc_eof);
-		} else {
+		if (data_len < sizeof(struct fcoe_crc_eof)) {
 			size -= sizeof(struct fcoe_crc_eof) - data_len;
 			data_len = 0;
+		} else {
+			data_len -= sizeof(struct fcoe_crc_eof);
 		}
 	}
 
 #endif
-	dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
-	if (dma_mapping_error(dev, dma))
+	dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE);
+	if (dma_mapping_error(tx_ring->dev, dma))
 		goto dma_error;
 
-	cmd_type = ixgbe_tx_cmd_type(tx_flags);
-	olinfo_status = ixgbe_tx_olinfo_status(tx_flags, paylen);
+	/* record length, and DMA address */
+	dma_unmap_len_set(first, len, size);
+	dma_unmap_addr_set(first, dma, dma);
+	first->tx_flags = tx_flags;
 
-	tx_desc = IXGBE_TX_DESC(tx_ring, i);
+	tx_desc->read.buffer_addr = cpu_to_le64(dma);
 
 	for (;;) {
-		while (size > IXGBE_MAX_DATA_PER_TXD) {
-			tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
+		while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) {
 			tx_desc->read.cmd_type_len =
 				cmd_type | cpu_to_le32(IXGBE_MAX_DATA_PER_TXD);
-			tx_desc->read.olinfo_status = olinfo_status;
-
-			offset += IXGBE_MAX_DATA_PER_TXD;
-			size -= IXGBE_MAX_DATA_PER_TXD;
 
-			tx_desc++;
 			i++;
+			tx_desc++;
 			if (i == tx_ring->count) {
 				tx_desc = IXGBE_TX_DESC(tx_ring, 0);
 				i = 0;
 			}
+
+			dma += IXGBE_MAX_DATA_PER_TXD;
+			size -= IXGBE_MAX_DATA_PER_TXD;
+
+			tx_desc->read.buffer_addr = cpu_to_le64(dma);
+			tx_desc->read.olinfo_status = 0;
 		}
 
-		tx_buffer_info = &tx_ring->tx_buffer_info[i];
-		tx_buffer_info->length = offset + size;
-		tx_buffer_info->tx_flags = tx_flags;
-		tx_buffer_info->dma = dma;
+		if (likely(!data_len))
+			break;
 
-		tx_desc->read.buffer_addr = cpu_to_le64(dma + offset);
+		if (unlikely(skb->no_fcs))
+			cmd_type &= ~(cpu_to_le32(IXGBE_ADVTXD_DCMD_IFCS));
 		tx_desc->read.cmd_type_len = cmd_type | cpu_to_le32(size);
-		tx_desc->read.olinfo_status = olinfo_status;
 
-		if (!data_len)
-			break;
+		i++;
+		tx_desc++;
+		if (i == tx_ring->count) {
+			tx_desc = IXGBE_TX_DESC(tx_ring, 0);
+			i = 0;
+		}
 
-		frag = &skb_shinfo(skb)->frags[f];
 #ifdef IXGBE_FCOE
 		size = min_t(unsigned int, data_len, skb_frag_size(frag));
 #else
 		size = skb_frag_size(frag);
 #endif
 		data_len -= size;
-		f++;
 
-		offset = 0;
-		tx_flags |= IXGBE_TX_FLAGS_MAPPED_AS_PAGE;
-
-		dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE);
-		if (dma_mapping_error(dev, dma))
+		dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size,
+				       DMA_TO_DEVICE);
+		if (dma_mapping_error(tx_ring->dev, dma))
 			goto dma_error;
 
-		tx_desc++;
-		i++;
-		if (i == tx_ring->count) {
-			tx_desc = IXGBE_TX_DESC(tx_ring, 0);
-			i = 0;
-		}
-	}
-
-	tx_desc->read.cmd_type_len |= cpu_to_le32(IXGBE_TXD_CMD);
-
-	i++;
-	if (i == tx_ring->count)
-		i = 0;
+		tx_buffer = &tx_ring->tx_buffer_info[i];
+		dma_unmap_len_set(tx_buffer, len, size);
+		dma_unmap_addr_set(tx_buffer, dma, dma);
 
-	tx_ring->next_to_use = i;
+		tx_desc->read.buffer_addr = cpu_to_le64(dma);
+		tx_desc->read.olinfo_status = 0;
 
-	if (tx_flags & IXGBE_TX_FLAGS_TSO)
-		gso_segs = skb_shinfo(skb)->gso_segs;
-#ifdef IXGBE_FCOE
-	/* adjust for FCoE Sequence Offload */
-	else if (tx_flags & IXGBE_TX_FLAGS_FSO)
-		gso_segs = DIV_ROUND_UP(skb->len - hdr_len,
-					skb_shinfo(skb)->gso_size);
-#endif /* IXGBE_FCOE */
-	else
-		gso_segs = 1;
+		frag++;
+	}
 
-	/* multiply data chunks by size of headers */
-	tx_buffer_info->bytecount = paylen + (gso_segs * hdr_len);
-	tx_buffer_info->gso_segs = gso_segs;
-	tx_buffer_info->skb = skb;
+	/* write last descriptor with RS and EOP bits */
+	cmd_type |= cpu_to_le32(size) | cpu_to_le32(IXGBE_TXD_CMD);
+	tx_desc->read.cmd_type_len = cmd_type;
 
-	netdev_tx_sent_queue(txring_txq(tx_ring), tx_buffer_info->bytecount);
+	netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount);
 
 	/* set the timestamp */
 	first->time_stamp = jiffies;
 
 	/*
-	 * Force memory writes to complete before letting h/w
-	 * know there are new descriptors to fetch.  (Only
-	 * applicable for weak-ordered memory model archs,
-	 * such as IA-64).
+	 * Force memory writes to complete before letting h/w know there
+	 * are new descriptors to fetch.  (Only applicable for weak-ordered
+	 * memory model archs, such as IA-64).
+	 *
+	 * We also need this memory barrier to make certain all of the
+	 * status bits have been updated before next_to_watch is written.
 	 */
 	wmb();
 
 	/* set next_to_watch value indicating a packet is present */
 	first->next_to_watch = tx_desc;
 
+	i++;
+	if (i == tx_ring->count)
+		i = 0;
+
+	tx_ring->next_to_use = i;
+
 	/* notify HW of packet */
 	writel(i, tx_ring->tail);
 
 	return;
 dma_error:
-	dev_err(dev, "TX DMA map failed\n");
+	dev_err(tx_ring->dev, "TX DMA map failed\n");
 
 	/* clear dma mappings for failed tx_buffer_info map */
 	for (;;) {
-		tx_buffer_info = &tx_ring->tx_buffer_info[i];
-		ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info);
-		if (tx_buffer_info == first)
+		tx_buffer = &tx_ring->tx_buffer_info[i];
+		ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer);
+		if (tx_buffer == first)
 			break;
 		if (i == 0)
 			i = tx_ring->count;
 		i--;
 	}
 
-	dev_kfree_skb_any(skb);
-
 	tx_ring->next_to_use = i;
 }
 
-static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
+static void ixgbe_atr(struct ixgbe_ring *ring,
+		      struct ixgbe_tx_buffer *first,
 		      u32 tx_flags, __be16 protocol)
 {
 	struct ixgbe_q_vector *q_vector = ring->q_vector;
@@ -6886,7 +6946,7 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
 	ring->atr_count++;
 
 	/* snag network header to get L4 type and address */
-	hdr.network = skb_network_header(skb);
+	hdr.network = skb_network_header(first->skb);
 
 	/* Currently only IPv4/IPv6 with TCP is supported */
 	if ((protocol != __constant_htons(ETH_P_IPV6) ||
@@ -6895,7 +6955,7 @@ static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb,
 	     hdr.ipv4->protocol != IPPROTO_TCP))
 		return;
 
-	th = tcp_hdr(skb);
+	th = tcp_hdr(first->skb);
 
 	/* skip this packet since it is invalid or the socket is closing */
 	if (!th || th->fin)
@@ -7033,6 +7093,12 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
 		return NETDEV_TX_BUSY;
 	}
 
+	/* record the location of the first descriptor for this packet */
+	first = &tx_ring->tx_buffer_info[tx_ring->next_to_use];
+	first->skb = skb;
+	first->bytecount = skb->len;
+	first->gso_segs = 1;
+
 	/* if we have a HW VLAN tag being added default to the HW one */
 	if (vlan_tx_tag_present(skb)) {
 		tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT;
@@ -7079,14 +7145,11 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
 		}
 	}
 
-	/* record the location of the first descriptor for this packet */
-	first = &tx_ring->tx_buffer_info[tx_ring->next_to_use];
-
 #ifdef IXGBE_FCOE
 	/* setup tx offload for FCoE */
 	if ((protocol == __constant_htons(ETH_P_FCOE)) &&
 	    (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) {
-		tso = ixgbe_fso(tx_ring, skb, tx_flags, &hdr_len);
+		tso = ixgbe_fso(tx_ring, first, tx_flags, &hdr_len);
 		if (tso < 0)
 			goto out_drop;
 		else if (tso)
@@ -7103,37 +7166,55 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
 	if (protocol == __constant_htons(ETH_P_IP))
 		tx_flags |= IXGBE_TX_FLAGS_IPV4;
 
-	tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len);
+	tso = ixgbe_tso(tx_ring, first, tx_flags, protocol, &hdr_len);
 	if (tso < 0)
 		goto out_drop;
 	else if (tso)
-		tx_flags |= IXGBE_TX_FLAGS_TSO;
-	else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol))
+		tx_flags |= IXGBE_TX_FLAGS_TSO | IXGBE_TX_FLAGS_CSUM;
+	else if (ixgbe_tx_csum(tx_ring, first, tx_flags, protocol))
 		tx_flags |= IXGBE_TX_FLAGS_CSUM;
 
 	/* add the ATR filter if ATR is on */
 	if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state))
-		ixgbe_atr(tx_ring, skb, tx_flags, protocol);
+		ixgbe_atr(tx_ring, first, tx_flags, protocol);
 
 #ifdef IXGBE_FCOE
 xmit_fcoe:
 #endif /* IXGBE_FCOE */
-	ixgbe_tx_map(tx_ring, skb, first, tx_flags, hdr_len);
+	ixgbe_tx_map(tx_ring, first, tx_flags, hdr_len);
 
 	ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED);
 
 	return NETDEV_TX_OK;
 
 out_drop:
-	dev_kfree_skb_any(skb);
+	dev_kfree_skb_any(first->skb);
+	first->skb = NULL;
+
 	return NETDEV_TX_OK;
 }
 
-static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
+				    struct net_device *netdev)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_ring *tx_ring;
 
+	if (skb->len <= 0) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	/*
+	 * The minimum packet size for olinfo paylen is 17 so pad the skb
+	 * in order to meet this minimum size requirement.
+	 */
+	if (skb->len < 17) {
+		if (skb_padto(skb, 17))
+			return NETDEV_TX_OK;
+		skb->len = 17;
+	}
+
 	tx_ring = adapter->tx_ring[skb->queue_mapping];
 	return ixgbe_xmit_frame_ring(skb, adapter, tx_ring);
 }
@@ -7457,6 +7538,7 @@ static int ixgbe_set_features(struct net_device *netdev,
 	netdev_features_t data)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
+	netdev_features_t changed = netdev->features ^ data;
 	bool need_reset = false;
 
 	/* Make sure RSC matches LRO, reset if change */
@@ -7493,6 +7575,10 @@ static int ixgbe_set_features(struct net_device *netdev,
 		need_reset = true;
 	}
 
+	if (changed & NETIF_F_RXALL)
+		need_reset = true;
+
+	netdev->features = data;
 	if (need_reset)
 		ixgbe_do_reset(netdev);
 
@@ -7771,6 +7857,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 		break;
 	}
 
+	netdev->hw_features |= NETIF_F_RXALL;
+
 	netdev->vlan_features |= NETIF_F_TSO;
 	netdev->vlan_features |= NETIF_F_TSO6;
 	netdev->vlan_features |= NETIF_F_IP_CSUM;
@@ -7778,6 +7866,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 	netdev->vlan_features |= NETIF_F_SG;
 
 	netdev->priv_flags |= IFF_UNICAST_FLT;
+	netdev->priv_flags |= IFF_SUPP_NOFCS;
 
 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 		adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED |