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

Pull networking updates from David Millar:
 "Here are some highlights from the 2065 networking commits that
  happened this development cycle:

   1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)

   2) Add a generic XDP driver, so that anyone can test XDP even if they
      lack a networking device whose driver has explicit XDP support
      (me).

   3) Sparc64 now has an eBPF JIT too (me)

   4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
      Starovoitov)

   5) Make netfitler network namespace teardown less expensive (Florian
      Westphal)

   6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)

   7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)

   8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)

   9) Multiqueue support in stmmac driver (Joao Pinto)

  10) Remove TCP timewait recycling, it never really could possibly work
      well in the real world and timestamp randomization really zaps any
      hint of usability this feature had (Soheil Hassas Yeganeh)

  11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
      Aleksandrov)

  12) Add socket busy poll support to epoll (Sridhar Samudrala)

  13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
      and several others)

  14) IPSEC hw offload infrastructure (Steffen Klassert)"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
  tipc: refactor function tipc_sk_recv_stream()
  tipc: refactor function tipc_sk_recvmsg()
  net: thunderx: Optimize page recycling for XDP
  net: thunderx: Support for XDP header adjustment
  net: thunderx: Add support for XDP_TX
  net: thunderx: Add support for XDP_DROP
  net: thunderx: Add basic XDP support
  net: thunderx: Cleanup receive buffer allocation
  net: thunderx: Optimize CQE_TX handling
  net: thunderx: Optimize RBDR descriptor handling
  net: thunderx: Support for page recycling
  ipx: call ipxitf_put() in ioctl error path
  net: sched: add helpers to handle extended actions
  qed*: Fix issues in the ptp filter config implementation.
  qede: Fix concurrency issue in PTP Tx path processing.
  stmmac: Add support for SIMATIC IOT2000 platform
  net: hns: fix ethtool_get_strings overflow in hns driver
  tcp: fix wraparound issue in tcp_lp
  bpf, arm64: fix jit branch offset related to ldimm64
  bpf, arm64: implement jiting of BPF_XADD
  ...

1 files changed, 465 insertions, 107 deletions

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index a7a430a7be2c..22a29df1d29e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -49,6 +49,9 @@
 #include <linux/if_macvlan.h>
 #include <linux/if_bridge.h>
 #include <linux/prefetch.h>
+#include <linux/bpf.h>
+#include <linux/bpf_trace.h>
+#include <linux/atomic.h>
 #include <scsi/fc/fc_fcoe.h>
 #include <net/udp_tunnel.h>
 #include <net/pkt_cls.h>
@@ -85,6 +88,7 @@ static const struct ixgbe_info *ixgbe_info_tbl[] = {
 	[board_X540]		= &ixgbe_X540_info,
 	[board_X550]		= &ixgbe_X550_info,
 	[board_X550EM_x]	= &ixgbe_X550EM_x_info,
+	[board_x550em_x_fw]	= &ixgbe_x550em_x_fw_info,
 	[board_x550em_a]	= &ixgbe_x550em_a_info,
 	[board_x550em_a_fw]	= &ixgbe_x550em_a_fw_info,
 };
@@ -131,9 +135,11 @@ static const struct pci_device_id ixgbe_pci_tbl[] = {
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550T), board_X550},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550T1), board_X550},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KX4), board_X550EM_x},
+	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_XFI), board_X550EM_x},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KR), board_X550EM_x},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_10G_T), board_X550EM_x},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_SFP), board_X550EM_x},
+	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_1G_T), board_x550em_x_fw},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_A_KR), board_x550em_a },
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_A_KR_L), board_x550em_a },
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_A_SFP_N), board_x550em_a },
@@ -508,7 +514,7 @@ static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = {
  */
 static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo)
 {
-	int i = 0, j = 0;
+	int i;
 	char rname[16];
 	u32 regs[64];
 
@@ -570,21 +576,38 @@ static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo)
 			regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
 		break;
 	default:
-		pr_info("%-15s %08x\n", reginfo->name,
-			IXGBE_READ_REG(hw, reginfo->ofs));
+		pr_info("%-15s %08x\n",
+			reginfo->name, IXGBE_READ_REG(hw, reginfo->ofs));
 		return;
 	}
 
-	for (i = 0; i < 8; i++) {
-		snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7);
-		pr_err("%-15s", rname);
+	i = 0;
+	while (i < 64) {
+		int j;
+		char buf[9 * 8 + 1];
+		char *p = buf;
+
+		snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i, i + 7);
 		for (j = 0; j < 8; j++)
-			pr_cont(" %08x", regs[i*8+j]);
-		pr_cont("\n");
+			p += sprintf(p, " %08x", regs[i++]);
+		pr_err("%-15s%s\n", rname, buf);
 	}
 
 }
 
+static void ixgbe_print_buffer(struct ixgbe_ring *ring, int n)
+{
+	struct ixgbe_tx_buffer *tx_buffer;
+
+	tx_buffer = &ring->tx_buffer_info[ring->next_to_clean];
+	pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n",
+		n, ring->next_to_use, ring->next_to_clean,
+		(u64)dma_unmap_addr(tx_buffer, dma),
+		dma_unmap_len(tx_buffer, len),
+		tx_buffer->next_to_watch,
+		(u64)tx_buffer->time_stamp);
+}
+
 /*
  * ixgbe_dump - Print registers, tx-rings and rx-rings
  */
@@ -594,14 +617,13 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct ixgbe_reg_info *reginfo;
 	int n = 0;
-	struct ixgbe_ring *tx_ring;
+	struct ixgbe_ring *ring;
 	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;
 	union ixgbe_adv_rx_desc *rx_desc;
 	struct ixgbe_rx_buffer *rx_buffer_info;
-	u32 staterr;
 	int i = 0;
 
 	if (!netif_msg_hw(adapter))
@@ -635,14 +657,13 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 		"Queue [NTU] [NTC] [bi(ntc)->dma  ]",
 		"leng", "ntw", "timestamp");
 	for (n = 0; n < adapter->num_tx_queues; n++) {
-		tx_ring = adapter->tx_ring[n];
-		tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
-		pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n",
-			   n, tx_ring->next_to_use, tx_ring->next_to_clean,
-			   (u64)dma_unmap_addr(tx_buffer, dma),
-			   dma_unmap_len(tx_buffer, len),
-			   tx_buffer->next_to_watch,
-			   (u64)tx_buffer->time_stamp);
+		ring = adapter->tx_ring[n];
+		ixgbe_print_buffer(ring, n);
+	}
+
+	for (n = 0; n < adapter->num_xdp_queues; n++) {
+		ring = adapter->xdp_ring[n];
+		ixgbe_print_buffer(ring, n);
 	}
 
 	/* Print TX Rings */
@@ -687,21 +708,32 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 	 */
 
 	for (n = 0; n < adapter->num_tx_queues; n++) {
-		tx_ring = adapter->tx_ring[n];
+		ring = adapter->tx_ring[n];
 		pr_info("------------------------------------\n");
-		pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index);
+		pr_info("TX QUEUE INDEX = %d\n", ring->queue_index);
 		pr_info("------------------------------------\n");
 		pr_info("%s%s    %s              %s        %s          %s\n",
 			"T [desc]     [address 63:0  ] ",
 			"[PlPOIdStDDt Ln] [bi->dma       ] ",
 			"leng", "ntw", "timestamp", "bi->skb");
 
-		for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) {
-			tx_desc = IXGBE_TX_DESC(tx_ring, i);
-			tx_buffer = &tx_ring->tx_buffer_info[i];
+		for (i = 0; ring->desc && (i < ring->count); i++) {
+			tx_desc = IXGBE_TX_DESC(ring, i);
+			tx_buffer = &ring->tx_buffer_info[i];
 			u0 = (struct my_u0 *)tx_desc;
 			if (dma_unmap_len(tx_buffer, len) > 0) {
-				pr_info("T [0x%03X]    %016llX %016llX %016llX %08X %p %016llX %p",
+				const char *ring_desc;
+
+				if (i == ring->next_to_use &&
+				    i == ring->next_to_clean)
+					ring_desc = " NTC/U";
+				else if (i == ring->next_to_use)
+					ring_desc = " NTU";
+				else if (i == ring->next_to_clean)
+					ring_desc = " NTC";
+				else
+					ring_desc = "";
+				pr_info("T [0x%03X]    %016llX %016llX %016llX %08X %p %016llX %p%s",
 					i,
 					le64_to_cpu(u0->a),
 					le64_to_cpu(u0->b),
@@ -709,16 +741,8 @@ static void ixgbe_dump(struct ixgbe_adapter *adapter)
 					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");
-				else if (i == tx_ring->next_to_use)
-					pr_cont(" NTU\n");
-				else if (i == tx_ring->next_to_clean)
-					pr_cont(" NTC\n");
-				else
-					pr_cont("\n");
+					tx_buffer->skb,
+					ring_desc);
 
 				if (netif_msg_pktdata(adapter) &&
 				    tx_buffer->skb)
@@ -797,34 +821,44 @@ rx_ring_summary:
 		pr_info("------------------------------------\n");
 		pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index);
 		pr_info("------------------------------------\n");
-		pr_info("%s%s%s",
+		pr_info("%s%s%s\n",
 			"R  [desc]      [ PktBuf     A0] ",
 			"[  HeadBuf   DD] [bi->dma       ] [bi->skb       ] ",
-			"<-- Adv Rx Read format\n");
-		pr_info("%s%s%s",
+			"<-- Adv Rx Read format");
+		pr_info("%s%s%s\n",
 			"RWB[desc]      [PcsmIpSHl PtRs] ",
 			"[vl er S cks ln] ---------------- [bi->skb       ] ",
-			"<-- Adv Rx Write-Back format\n");
+			"<-- Adv Rx Write-Back format");
 
 		for (i = 0; i < rx_ring->count; i++) {
+			const char *ring_desc;
+
+			if (i == rx_ring->next_to_use)
+				ring_desc = " NTU";
+			else if (i == rx_ring->next_to_clean)
+				ring_desc = " NTC";
+			else
+				ring_desc = "";
+
 			rx_buffer_info = &rx_ring->rx_buffer_info[i];
 			rx_desc = IXGBE_RX_DESC(rx_ring, i);
 			u0 = (struct my_u0 *)rx_desc;
-			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
-			if (staterr & IXGBE_RXD_STAT_DD) {
+			if (rx_desc->wb.upper.length) {
 				/* Descriptor Done */
-				pr_info("RWB[0x%03X]     %016llX "
-					"%016llX ---------------- %p", i,
+				pr_info("RWB[0x%03X]     %016llX %016llX ---------------- %p%s\n",
+					i,
 					le64_to_cpu(u0->a),
 					le64_to_cpu(u0->b),
-					rx_buffer_info->skb);
+					rx_buffer_info->skb,
+					ring_desc);
 			} else {
-				pr_info("R  [0x%03X]     %016llX "
-					"%016llX %016llX %p", i,
+				pr_info("R  [0x%03X]     %016llX %016llX %016llX %p%s\n",
+					i,
 					le64_to_cpu(u0->a),
 					le64_to_cpu(u0->b),
 					(u64)rx_buffer_info->dma,
-					rx_buffer_info->skb);
+					rx_buffer_info->skb,
+					ring_desc);
 
 				if (netif_msg_pktdata(adapter) &&
 				    rx_buffer_info->dma) {
@@ -835,14 +869,6 @@ rx_ring_summary:
 					   ixgbe_rx_bufsz(rx_ring), true);
 				}
 			}
-
-			if (i == rx_ring->next_to_use)
-				pr_cont(" NTU\n");
-			else if (i == rx_ring->next_to_clean)
-				pr_cont(" NTC\n");
-			else
-				pr_cont("\n");
-
 		}
 	}
 }
@@ -972,6 +998,10 @@ static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter)
 	for (i = 0; i < adapter->num_tx_queues; i++)
 		clear_bit(__IXGBE_HANG_CHECK_ARMED,
 			  &adapter->tx_ring[i]->state);
+
+	for (i = 0; i < adapter->num_xdp_queues; i++)
+		clear_bit(__IXGBE_HANG_CHECK_ARMED,
+			  &adapter->xdp_ring[i]->state);
 }
 
 static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter)
@@ -1016,6 +1046,14 @@ static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter)
 		if (xoff[tc])
 			clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state);
 	}
+
+	for (i = 0; i < adapter->num_xdp_queues; i++) {
+		struct ixgbe_ring *xdp_ring = adapter->xdp_ring[i];
+
+		tc = xdp_ring->dcb_tc;
+		if (xoff[tc])
+			clear_bit(__IXGBE_HANG_CHECK_ARMED, &xdp_ring->state);
+	}
 }
 
 static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring)
@@ -1167,7 +1205,10 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 		total_packets += tx_buffer->gso_segs;
 
 		/* free the skb */
-		napi_consume_skb(tx_buffer->skb, napi_budget);
+		if (ring_is_xdp(tx_ring))
+			page_frag_free(tx_buffer->data);
+		else
+			napi_consume_skb(tx_buffer->skb, napi_budget);
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
@@ -1228,7 +1269,7 @@ 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;
-		e_err(drv, "Detected Tx Unit Hang\n"
+		e_err(drv, "Detected Tx Unit Hang %s\n"
 			"  Tx Queue             <%d>\n"
 			"  TDH, TDT             <%x>, <%x>\n"
 			"  next_to_use          <%x>\n"
@@ -1236,13 +1277,16 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 			"tx_buffer_info[next_to_clean]\n"
 			"  time_stamp           <%lx>\n"
 			"  jiffies              <%lx>\n",
+			ring_is_xdp(tx_ring) ? "(XDP)" : "",
 			tx_ring->queue_index,
 			IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)),
 			IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)),
 			tx_ring->next_to_use, i,
 			tx_ring->tx_buffer_info[i].time_stamp, jiffies);
 
-		netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
+		if (!ring_is_xdp(tx_ring))
+			netif_stop_subqueue(tx_ring->netdev,
+					    tx_ring->queue_index);
 
 		e_info(probe,
 		       "tx hang %d detected on queue %d, resetting adapter\n",
@@ -1255,6 +1299,9 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
 		return true;
 	}
 
+	if (ring_is_xdp(tx_ring))
+		return !!budget;
+
 	netdev_tx_completed_queue(txring_txq(tx_ring),
 				  total_packets, total_bytes);
 
@@ -1846,6 +1893,10 @@ static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring,
  * @rx_desc: pointer to the EOP Rx descriptor
  * @skb: pointer to current skb being fixed
  *
+ * Check if the skb is valid in the XDP case it will be an error pointer.
+ * Return true in this case to abort processing and advance to next
+ * descriptor.
+ *
  * 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.
@@ -1864,6 +1915,10 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
 {
 	struct net_device *netdev = rx_ring->netdev;
 
+	/* XDP packets use error pointer so abort at this point */
+	if (IS_ERR(skb))
+		return true;
+
 	/* verify that the packet does not have any known errors */
 	if (unlikely(ixgbe_test_staterr(rx_desc,
 					IXGBE_RXDADV_ERR_FRAME_ERR_MASK) &&
@@ -2039,7 +2094,7 @@ static void ixgbe_put_rx_buffer(struct ixgbe_ring *rx_ring,
 		/* 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) {
+		if (!IS_ERR(skb) && IXGBE_CB(skb)->dma == rx_buffer->dma) {
 			/* the page has been released from the ring */
 			IXGBE_CB(skb)->page_released = true;
 		} else {
@@ -2060,21 +2115,22 @@ static void ixgbe_put_rx_buffer(struct ixgbe_ring *rx_ring,
 
 static struct sk_buff *ixgbe_construct_skb(struct ixgbe_ring *rx_ring,
 					   struct ixgbe_rx_buffer *rx_buffer,
-					   union ixgbe_adv_rx_desc *rx_desc,
-					   unsigned int size)
+					   struct xdp_buff *xdp,
+					   union ixgbe_adv_rx_desc *rx_desc)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	unsigned int size = xdp->data_end - xdp->data;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = ixgbe_rx_pg_size(rx_ring) / 2;
 #else
-	unsigned int truesize = SKB_DATA_ALIGN(size);
+	unsigned int truesize = SKB_DATA_ALIGN(xdp->data_end -
+					       xdp->data_hard_start);
 #endif
 	struct sk_buff *skb;
 
 	/* prefetch first cache line of first page */
-	prefetch(va);
+	prefetch(xdp->data);
 #if L1_CACHE_BYTES < 128
-	prefetch(va + L1_CACHE_BYTES);
+	prefetch(xdp->data + L1_CACHE_BYTES);
 #endif
 
 	/* allocate a skb to store the frags */
@@ -2087,7 +2143,7 @@ static struct sk_buff *ixgbe_construct_skb(struct ixgbe_ring *rx_ring,
 			IXGBE_CB(skb)->dma = rx_buffer->dma;
 
 		skb_add_rx_frag(skb, 0, rx_buffer->page,
-				rx_buffer->page_offset,
+				xdp->data - page_address(rx_buffer->page),
 				size, truesize);
 #if (PAGE_SIZE < 8192)
 		rx_buffer->page_offset ^= truesize;
@@ -2095,7 +2151,8 @@ static struct sk_buff *ixgbe_construct_skb(struct ixgbe_ring *rx_ring,
 		rx_buffer->page_offset += truesize;
 #endif
 	} else {
-		memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long)));
+		memcpy(__skb_put(skb, size),
+		       xdp->data, ALIGN(size, sizeof(long)));
 		rx_buffer->pagecnt_bias++;
 	}
 
@@ -2104,32 +2161,32 @@ static struct sk_buff *ixgbe_construct_skb(struct ixgbe_ring *rx_ring,
 
 static struct sk_buff *ixgbe_build_skb(struct ixgbe_ring *rx_ring,
 				       struct ixgbe_rx_buffer *rx_buffer,
-				       union ixgbe_adv_rx_desc *rx_desc,
-				       unsigned int size)
+				       struct xdp_buff *xdp,
+				       union ixgbe_adv_rx_desc *rx_desc)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = ixgbe_rx_pg_size(rx_ring) / 2;
 #else
 	unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) +
-				SKB_DATA_ALIGN(IXGBE_SKB_PAD + size);
+				SKB_DATA_ALIGN(xdp->data_end -
+					       xdp->data_hard_start);
 #endif
 	struct sk_buff *skb;
 
 	/* prefetch first cache line of first page */
-	prefetch(va);
+	prefetch(xdp->data);
 #if L1_CACHE_BYTES < 128
-	prefetch(va + L1_CACHE_BYTES);
+	prefetch(xdp->data + L1_CACHE_BYTES);
 #endif
 
 	/* build an skb to around the page buffer */
-	skb = build_skb(va - IXGBE_SKB_PAD, truesize);
+	skb = build_skb(xdp->data_hard_start, truesize);
 	if (unlikely(!skb))
 		return NULL;
 
 	/* update pointers within the skb to store the data */
-	skb_reserve(skb, IXGBE_SKB_PAD);
-	__skb_put(skb, size);
+	skb_reserve(skb, xdp->data - xdp->data_hard_start);
+	__skb_put(skb, xdp->data_end - xdp->data);
 
 	/* record DMA address if this is the start of a chain of buffers */
 	if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))
@@ -2145,6 +2202,65 @@ static struct sk_buff *ixgbe_build_skb(struct ixgbe_ring *rx_ring,
 	return skb;
 }
 
+#define IXGBE_XDP_PASS 0
+#define IXGBE_XDP_CONSUMED 1
+#define IXGBE_XDP_TX 2
+
+static int ixgbe_xmit_xdp_ring(struct ixgbe_adapter *adapter,
+			       struct xdp_buff *xdp);
+
+static struct sk_buff *ixgbe_run_xdp(struct ixgbe_adapter *adapter,
+				     struct ixgbe_ring *rx_ring,
+				     struct xdp_buff *xdp)
+{
+	int result = IXGBE_XDP_PASS;
+	struct bpf_prog *xdp_prog;
+	u32 act;
+
+	rcu_read_lock();
+	xdp_prog = READ_ONCE(rx_ring->xdp_prog);
+
+	if (!xdp_prog)
+		goto xdp_out;
+
+	act = bpf_prog_run_xdp(xdp_prog, xdp);
+	switch (act) {
+	case XDP_PASS:
+		break;
+	case XDP_TX:
+		result = ixgbe_xmit_xdp_ring(adapter, xdp);
+		break;
+	default:
+		bpf_warn_invalid_xdp_action(act);
+	case XDP_ABORTED:
+		trace_xdp_exception(rx_ring->netdev, xdp_prog, act);
+		/* fallthrough -- handle aborts by dropping packet */
+	case XDP_DROP:
+		result = IXGBE_XDP_CONSUMED;
+		break;
+	}
+xdp_out:
+	rcu_read_unlock();
+	return ERR_PTR(-result);
+}
+
+static void ixgbe_rx_buffer_flip(struct ixgbe_ring *rx_ring,
+				 struct ixgbe_rx_buffer *rx_buffer,
+				 unsigned int size)
+{
+#if (PAGE_SIZE < 8192)
+	unsigned int truesize = ixgbe_rx_pg_size(rx_ring) / 2;
+
+	rx_buffer->page_offset ^= truesize;
+#else
+	unsigned int truesize = ring_uses_build_skb(rx_ring) ?
+				SKB_DATA_ALIGN(IXGBE_SKB_PAD + size) :
+				SKB_DATA_ALIGN(size);
+
+	rx_buffer->page_offset += truesize;
+#endif
+}
+
 /**
  * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
  * @q_vector: structure containing interrupt and ring information
@@ -2163,17 +2279,19 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 			       const int budget)
 {
 	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
-#ifdef IXGBE_FCOE
 	struct ixgbe_adapter *adapter = q_vector->adapter;
+#ifdef IXGBE_FCOE
 	int ddp_bytes;
 	unsigned int mss = 0;
 #endif /* IXGBE_FCOE */
 	u16 cleaned_count = ixgbe_desc_unused(rx_ring);
+	bool xdp_xmit = false;
 
 	while (likely(total_rx_packets < budget)) {
 		union ixgbe_adv_rx_desc *rx_desc;
 		struct ixgbe_rx_buffer *rx_buffer;
 		struct sk_buff *skb;
+		struct xdp_buff xdp;
 		unsigned int size;
 
 		/* return some buffers to hardware, one at a time is too slow */
@@ -2196,14 +2314,34 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		rx_buffer = ixgbe_get_rx_buffer(rx_ring, rx_desc, &skb, size);
 
 		/* retrieve a buffer from the ring */
-		if (skb)
+		if (!skb) {
+			xdp.data = page_address(rx_buffer->page) +
+				   rx_buffer->page_offset;
+			xdp.data_hard_start = xdp.data -
+					      ixgbe_rx_offset(rx_ring);
+			xdp.data_end = xdp.data + size;
+
+			skb = ixgbe_run_xdp(adapter, rx_ring, &xdp);
+		}
+
+		if (IS_ERR(skb)) {
+			if (PTR_ERR(skb) == -IXGBE_XDP_TX) {
+				xdp_xmit = true;
+				ixgbe_rx_buffer_flip(rx_ring, rx_buffer, size);
+			} else {
+				rx_buffer->pagecnt_bias++;
+			}
+			total_rx_packets++;
+			total_rx_bytes += size;
+		} else if (skb) {
 			ixgbe_add_rx_frag(rx_ring, rx_buffer, skb, size);
-		else if (ring_uses_build_skb(rx_ring))
+		} else if (ring_uses_build_skb(rx_ring)) {
 			skb = ixgbe_build_skb(rx_ring, rx_buffer,
-					      rx_desc, size);
-		else
+					      &xdp, rx_desc);
+		} else {
 			skb = ixgbe_construct_skb(rx_ring, rx_buffer,
-						  rx_desc, size);
+						  &xdp, rx_desc);
+		}
 
 		/* exit if we failed to retrieve a buffer */
 		if (!skb) {
@@ -2260,6 +2398,16 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		total_rx_packets++;
 	}
 
+	if (xdp_xmit) {
+		struct ixgbe_ring *ring = adapter->xdp_ring[smp_processor_id()];
+
+		/* Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.
+		 */
+		wmb();
+		writel(ring->next_to_use, ring->tail);
+	}
+
 	u64_stats_update_begin(&rx_ring->syncp);
 	rx_ring->stats.packets += total_rx_packets;
 	rx_ring->stats.bytes += total_rx_bytes;
@@ -3364,6 +3512,8 @@ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter)
 	/* Setup the HW Tx Head and Tail descriptor pointers */
 	for (i = 0; i < adapter->num_tx_queues; i++)
 		ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]);
+	for (i = 0; i < adapter->num_xdp_queues; i++)
+		ixgbe_configure_tx_ring(adapter, adapter->xdp_ring[i]);
 }
 
 static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter,
@@ -3489,6 +3639,28 @@ void ixgbe_store_key(struct ixgbe_adapter *adapter)
 }
 
 /**
+ * ixgbe_init_rss_key - Initialize adapter RSS key
+ * @adapter: device handle
+ *
+ * Allocates and initializes the RSS key if it is not allocated.
+ **/
+static inline int ixgbe_init_rss_key(struct ixgbe_adapter *adapter)
+{
+	u32 *rss_key;
+
+	if (!adapter->rss_key) {
+		rss_key = kzalloc(IXGBE_RSS_KEY_SIZE, GFP_KERNEL);
+		if (unlikely(!rss_key))
+			return -ENOMEM;
+
+		netdev_rss_key_fill(rss_key, IXGBE_RSS_KEY_SIZE);
+		adapter->rss_key = rss_key;
+	}
+
+	return 0;
+}
+
+/**
  * ixgbe_store_reta - Write the RETA table to HW
  * @adapter: device handle
  *
@@ -3590,7 +3762,7 @@ static void ixgbe_setup_vfreta(struct ixgbe_adapter *adapter)
 	/* Fill out hash function seeds */
 	for (i = 0; i < 10; i++)
 		IXGBE_WRITE_REG(hw, IXGBE_PFVFRSSRK(i, pf_pool),
-				adapter->rss_key[i]);
+				*(adapter->rss_key + i));
 
 	/* Fill out the redirection table */
 	for (i = 0, j = 0; i < 64; i++, j++) {
@@ -3651,7 +3823,6 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
 	if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
 		rss_field |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
 
-	netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key));
 	if ((hw->mac.type >= ixgbe_mac_X550) &&
 	    (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) {
 		unsigned int pf_pool = adapter->num_vfs;
@@ -3802,7 +3973,7 @@ void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter,
 		/* Limit the maximum frame size so we don't overrun the skb */
 		if (ring_uses_build_skb(ring) &&
 		    !test_bit(__IXGBE_RX_3K_BUFFER, &ring->state))
-			rxdctl |= IXGBE_MAX_FRAME_BUILD_SKB |
+			rxdctl |= IXGBE_MAX_2K_FRAME_BUILD_SKB |
 				  IXGBE_RXDCTL_RLPML_EN;
 #endif
 	}
@@ -3972,8 +4143,8 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter)
 		if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)
 			set_bit(__IXGBE_RX_3K_BUFFER, &rx_ring->state);
 
-		if ((max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) ||
-		    (max_frame > IXGBE_MAX_FRAME_BUILD_SKB))
+		if (IXGBE_2K_TOO_SMALL_WITH_PADDING ||
+		    (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
 			set_bit(__IXGBE_RX_3K_BUFFER, &rx_ring->state);
 #endif
 	}
@@ -5505,7 +5676,10 @@ static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring)
 		union ixgbe_adv_tx_desc *eop_desc, *tx_desc;
 
 		/* Free all the Tx ring sk_buffs */
-		dev_kfree_skb_any(tx_buffer->skb);
+		if (ring_is_xdp(tx_ring))
+			page_frag_free(tx_buffer->data);
+		else
+			dev_kfree_skb_any(tx_buffer->skb);
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
@@ -5546,7 +5720,8 @@ static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring)
 	}
 
 	/* reset BQL for queue */
-	netdev_tx_reset_queue(txring_txq(tx_ring));
+	if (!ring_is_xdp(tx_ring))
+		netdev_tx_reset_queue(txring_txq(tx_ring));
 
 	/* reset next_to_use and next_to_clean */
 	tx_ring->next_to_use = 0;
@@ -5575,6 +5750,8 @@ static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter)
 
 	for (i = 0; i < adapter->num_tx_queues; i++)
 		ixgbe_clean_tx_ring(adapter->tx_ring[i]);
+	for (i = 0; i < adapter->num_xdp_queues; i++)
+		ixgbe_clean_tx_ring(adapter->xdp_ring[i]);
 }
 
 static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter)
@@ -5669,6 +5846,11 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 		u8 reg_idx = adapter->tx_ring[i]->reg_idx;
 		IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH);
 	}
+	for (i = 0; i < adapter->num_xdp_queues; i++) {
+		u8 reg_idx = adapter->xdp_ring[i]->reg_idx;
+
+		IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH);
+	}
 
 	/* Disable the Tx DMA engine on 82599 and later MAC */
 	switch (hw->mac.type) {
@@ -5854,6 +6036,9 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter,
 	if (!adapter->mac_table)
 		return -ENOMEM;
 
+	if (ixgbe_init_rss_key(adapter))
+		return -ENOMEM;
+
 	/* Set MAC specific capability flags and exceptions */
 	switch (hw->mac.type) {
 	case ixgbe_mac_82598EB:
@@ -5944,10 +6129,8 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter,
 	/* assign number of SR-IOV VFs */
 	if (hw->mac.type != ixgbe_mac_82598EB) {
 		if (max_vfs > IXGBE_MAX_VFS_DRV_LIMIT) {
-			adapter->num_vfs = 0;
+			max_vfs = 0;
 			e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n");
-		} else {
-			adapter->num_vfs = max_vfs;
 		}
 	}
 #endif /* CONFIG_PCI_IOV */
@@ -6041,7 +6224,7 @@ err:
  **/
 static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter)
 {
-	int i, err = 0;
+	int i, j = 0, err = 0;
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		err = ixgbe_setup_tx_resources(adapter->tx_ring[i]);
@@ -6051,10 +6234,20 @@ static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter)
 		e_err(probe, "Allocation for Tx Queue %u failed\n", i);
 		goto err_setup_tx;
 	}
+	for (j = 0; j < adapter->num_xdp_queues; j++) {
+		err = ixgbe_setup_tx_resources(adapter->xdp_ring[j]);
+		if (!err)
+			continue;
+
+		e_err(probe, "Allocation for Tx Queue %u failed\n", j);
+		goto err_setup_tx;
+	}
 
 	return 0;
 err_setup_tx:
 	/* rewind the index freeing the rings as we go */
+	while (j--)
+		ixgbe_free_tx_resources(adapter->xdp_ring[j]);
 	while (i--)
 		ixgbe_free_tx_resources(adapter->tx_ring[i]);
 	return err;
@@ -6066,7 +6259,8 @@ err_setup_tx:
  *
  * Returns 0 on success, negative on failure
  **/
-int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
+int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter,
+			     struct ixgbe_ring *rx_ring)
 {
 	struct device *dev = rx_ring->dev;
 	int orig_node = dev_to_node(dev);
@@ -6105,6 +6299,8 @@ int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
 	rx_ring->next_to_clean = 0;
 	rx_ring->next_to_use = 0;
 
+	rx_ring->xdp_prog = adapter->xdp_prog;
+
 	return 0;
 err:
 	vfree(rx_ring->rx_buffer_info);
@@ -6128,7 +6324,7 @@ static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter)
 	int i, err = 0;
 
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		err = ixgbe_setup_rx_resources(adapter->rx_ring[i]);
+		err = ixgbe_setup_rx_resources(adapter, adapter->rx_ring[i]);
 		if (!err)
 			continue;
 
@@ -6184,6 +6380,9 @@ static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter)
 	for (i = 0; i < adapter->num_tx_queues; i++)
 		if (adapter->tx_ring[i]->desc)
 			ixgbe_free_tx_resources(adapter->tx_ring[i]);
+	for (i = 0; i < adapter->num_xdp_queues; i++)
+		if (adapter->xdp_ring[i]->desc)
+			ixgbe_free_tx_resources(adapter->xdp_ring[i]);
 }
 
 /**
@@ -6196,6 +6395,7 @@ void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring)
 {
 	ixgbe_clean_rx_ring(rx_ring);
 
+	rx_ring->xdp_prog = NULL;
 	vfree(rx_ring->rx_buffer_info);
 	rx_ring->rx_buffer_info = NULL;
 
@@ -6602,6 +6802,14 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
 		bytes += tx_ring->stats.bytes;
 		packets += tx_ring->stats.packets;
 	}
+	for (i = 0; i < adapter->num_xdp_queues; i++) {
+		struct ixgbe_ring *xdp_ring = adapter->xdp_ring[i];
+
+		restart_queue += xdp_ring->tx_stats.restart_queue;
+		tx_busy += xdp_ring->tx_stats.tx_busy;
+		bytes += xdp_ring->stats.bytes;
+		packets += xdp_ring->stats.packets;
+	}
 	adapter->restart_queue = restart_queue;
 	adapter->tx_busy = tx_busy;
 	netdev->stats.tx_bytes = bytes;
@@ -6795,6 +7003,9 @@ static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter)
 		for (i = 0; i < adapter->num_tx_queues; i++)
 			set_bit(__IXGBE_TX_FDIR_INIT_DONE,
 				&(adapter->tx_ring[i]->state));
+		for (i = 0; i < adapter->num_xdp_queues; i++)
+			set_bit(__IXGBE_TX_FDIR_INIT_DONE,
+				&adapter->xdp_ring[i]->state);
 		/* re-enable flow director interrupts */
 		IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR);
 	} else {
@@ -6828,6 +7039,8 @@ static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter)
 	if (netif_carrier_ok(adapter->netdev)) {
 		for (i = 0; i < adapter->num_tx_queues; i++)
 			set_check_for_tx_hang(adapter->tx_ring[i]);
+		for (i = 0; i < adapter->num_xdp_queues; i++)
+			set_check_for_tx_hang(adapter->xdp_ring[i]);
 	}
 
 	if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
@@ -7058,6 +7271,13 @@ static bool ixgbe_ring_tx_pending(struct ixgbe_adapter *adapter)
 			return true;
 	}
 
+	for (i = 0; i < adapter->num_xdp_queues; i++) {
+		struct ixgbe_ring *ring = adapter->xdp_ring[i];
+
+		if (ring->next_to_use != ring->next_to_clean)
+			return true;
+	}
+
 	return false;
 }
 
@@ -8015,6 +8235,62 @@ static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb,
 #endif
 }
 
+static int ixgbe_xmit_xdp_ring(struct ixgbe_adapter *adapter,
+			       struct xdp_buff *xdp)
+{
+	struct ixgbe_ring *ring = adapter->xdp_ring[smp_processor_id()];
+	struct ixgbe_tx_buffer *tx_buffer;
+	union ixgbe_adv_tx_desc *tx_desc;
+	u32 len, cmd_type;
+	dma_addr_t dma;
+	u16 i;
+
+	len = xdp->data_end - xdp->data;
+
+	if (unlikely(!ixgbe_desc_unused(ring)))
+		return IXGBE_XDP_CONSUMED;
+
+	dma = dma_map_single(ring->dev, xdp->data, len, DMA_TO_DEVICE);
+	if (dma_mapping_error(ring->dev, dma))
+		return IXGBE_XDP_CONSUMED;
+
+	/* record the location of the first descriptor for this packet */
+	tx_buffer = &ring->tx_buffer_info[ring->next_to_use];
+	tx_buffer->bytecount = len;
+	tx_buffer->gso_segs = 1;
+	tx_buffer->protocol = 0;
+
+	i = ring->next_to_use;
+	tx_desc = IXGBE_TX_DESC(ring, i);
+
+	dma_unmap_len_set(tx_buffer, len, len);
+	dma_unmap_addr_set(tx_buffer, dma, dma);
+	tx_buffer->data = xdp->data;
+	tx_desc->read.buffer_addr = cpu_to_le64(dma);
+
+	/* put descriptor type bits */
+	cmd_type = IXGBE_ADVTXD_DTYP_DATA |
+		   IXGBE_ADVTXD_DCMD_DEXT |
+		   IXGBE_ADVTXD_DCMD_IFCS;
+	cmd_type |= len | IXGBE_TXD_CMD;
+	tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type);
+	tx_desc->read.olinfo_status =
+		cpu_to_le32(len << IXGBE_ADVTXD_PAYLEN_SHIFT);
+
+	/* Avoid any potential race with xdp_xmit and cleanup */
+	smp_wmb();
+
+	/* set next_to_watch value indicating a packet is present */
+	i++;
+	if (i == ring->count)
+		i = 0;
+
+	tx_buffer->next_to_watch = tx_desc;
+	ring->next_to_use = i;
+
+	return IXGBE_XDP_TX;
+}
+
 netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
 			  struct ixgbe_adapter *adapter,
 			  struct ixgbe_ring *tx_ring)
@@ -8306,6 +8582,23 @@ static void ixgbe_netpoll(struct net_device *netdev)
 
 #endif
 
+static void ixgbe_get_ring_stats64(struct rtnl_link_stats64 *stats,
+				   struct ixgbe_ring *ring)
+{
+	u64 bytes, packets;
+	unsigned int start;
+
+	if (ring) {
+		do {
+			start = u64_stats_fetch_begin_irq(&ring->syncp);
+			packets = ring->stats.packets;
+			bytes   = ring->stats.bytes;
+		} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
+		stats->tx_packets += packets;
+		stats->tx_bytes   += bytes;
+	}
+}
+
 static void ixgbe_get_stats64(struct net_device *netdev,
 			      struct rtnl_link_stats64 *stats)
 {
@@ -8331,18 +8624,13 @@ static void ixgbe_get_stats64(struct net_device *netdev,
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]);
-		u64 bytes, packets;
-		unsigned int start;
 
-		if (ring) {
-			do {
-				start = u64_stats_fetch_begin_irq(&ring->syncp);
-				packets = ring->stats.packets;
-				bytes   = ring->stats.bytes;
-			} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
-			stats->tx_packets += packets;
-			stats->tx_bytes   += bytes;
-		}
+		ixgbe_get_ring_stats64(stats, ring);
+	}
+	for (i = 0; i < adapter->num_xdp_queues; i++) {
+		struct ixgbe_ring *ring = ACCESS_ONCE(adapter->xdp_ring[i]);
+
+		ixgbe_get_ring_stats64(stats, ring);
 	}
 	rcu_read_unlock();
 
@@ -8948,7 +9236,9 @@ static int __ixgbe_setup_tc(struct net_device *dev, u32 handle, __be16 proto,
 	if (tc->type != TC_SETUP_MQPRIO)
 		return -EINVAL;
 
-	return ixgbe_setup_tc(dev, tc->tc);
+	tc->mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
+
+	return ixgbe_setup_tc(dev, tc->mqprio->num_tc);
 }
 
 #ifdef CONFIG_PCI_IOV
@@ -9459,6 +9749,68 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev,
 	return features;
 }
 
+static int ixgbe_xdp_setup(struct net_device *dev, struct bpf_prog *prog)
+{
+	int i, frame_size = dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+	struct ixgbe_adapter *adapter = netdev_priv(dev);
+	struct bpf_prog *old_prog;
+
+	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
+		return -EINVAL;
+
+	if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
+		return -EINVAL;
+
+	/* verify ixgbe ring attributes are sufficient for XDP */
+	for (i = 0; i < adapter->num_rx_queues; i++) {
+		struct ixgbe_ring *ring = adapter->rx_ring[i];
+
+		if (ring_is_rsc_enabled(ring))
+			return -EINVAL;
+
+		if (frame_size > ixgbe_rx_bufsz(ring))
+			return -EINVAL;
+	}
+
+	if (nr_cpu_ids > MAX_XDP_QUEUES)
+		return -ENOMEM;
+
+	old_prog = xchg(&adapter->xdp_prog, prog);
+
+	/* If transitioning XDP modes reconfigure rings */
+	if (!!prog != !!old_prog) {
+		int err = ixgbe_setup_tc(dev, netdev_get_num_tc(dev));
+
+		if (err) {
+			rcu_assign_pointer(adapter->xdp_prog, old_prog);
+			return -EINVAL;
+		}
+	} else {
+		for (i = 0; i < adapter->num_rx_queues; i++)
+			xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
+	}
+
+	if (old_prog)
+		bpf_prog_put(old_prog);
+
+	return 0;
+}
+
+static int ixgbe_xdp(struct net_device *dev, struct netdev_xdp *xdp)
+{
+	struct ixgbe_adapter *adapter = netdev_priv(dev);
+
+	switch (xdp->command) {
+	case XDP_SETUP_PROG:
+		return ixgbe_xdp_setup(dev, xdp->prog);
+	case XDP_QUERY_PROG:
+		xdp->prog_attached = !!(adapter->xdp_prog);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
 static const struct net_device_ops ixgbe_netdev_ops = {
 	.ndo_open		= ixgbe_open,
 	.ndo_stop		= ixgbe_close,
@@ -9504,6 +9856,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
 	.ndo_udp_tunnel_add	= ixgbe_add_udp_tunnel_port,
 	.ndo_udp_tunnel_del	= ixgbe_del_udp_tunnel_port,
 	.ndo_features_check	= ixgbe_features_check,
+	.ndo_xdp		= ixgbe_xdp,
 };
 
 /**
@@ -9808,7 +10161,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	ixgbe_init_mbx_params_pf(hw);
 	hw->mbx.ops = ii->mbx_ops;
 	pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT);
-	ixgbe_enable_sriov(adapter);
+	ixgbe_enable_sriov(adapter, max_vfs);
 skip_sriov:
 
 #endif
@@ -9934,6 +10287,9 @@ skip_sriov:
 	if (err)
 		goto err_sw_init;
 
+	for (i = 0; i < adapter->num_xdp_queues; i++)
+		u64_stats_init(&adapter->xdp_ring[i]->syncp);
+
 	/* WOL not supported for all devices */
 	adapter->wol = 0;
 	hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap);
@@ -10059,6 +10415,7 @@ err_sw_init:
 	iounmap(adapter->io_addr);
 	kfree(adapter->jump_tables[0]);
 	kfree(adapter->mac_table);
+	kfree(adapter->rss_key);
 err_ioremap:
 	disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state);
 	free_netdev(netdev);
@@ -10143,6 +10500,7 @@ static void ixgbe_remove(struct pci_dev *pdev)
 	}
 
 	kfree(adapter->mac_table);
+	kfree(adapter->rss_key);
 	disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state);
 	free_netdev(netdev);