1 files changed, 240 insertions, 150 deletions

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index cebb44f51d5f..d368b753a467 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -106,8 +106,6 @@ static int igb_setup_all_rx_resources(struct igb_adapter *);
 static void igb_free_all_tx_resources(struct igb_adapter *);
 static void igb_free_all_rx_resources(struct igb_adapter *);
 static void igb_setup_mrqc(struct igb_adapter *);
-static int igb_probe(struct pci_dev *, const struct pci_device_id *);
-static void igb_remove(struct pci_dev *pdev);
 static void igb_init_queue_configuration(struct igb_adapter *adapter);
 static int igb_sw_init(struct igb_adapter *);
 int igb_open(struct net_device *);
@@ -117,8 +115,6 @@ static void igb_configure_tx(struct igb_adapter *);
 static void igb_configure_rx(struct igb_adapter *);
 static void igb_clean_all_tx_rings(struct igb_adapter *);
 static void igb_clean_all_rx_rings(struct igb_adapter *);
-static void igb_clean_tx_ring(struct igb_ring *);
-static void igb_clean_rx_ring(struct igb_ring *);
 static void igb_set_rx_mode(struct net_device *);
 static void igb_update_phy_info(struct timer_list *);
 static void igb_watchdog(struct timer_list *);
@@ -178,20 +174,6 @@ static int igb_vf_configure(struct igb_adapter *adapter, int vf);
 static int igb_disable_sriov(struct pci_dev *dev, bool reinit);
 #endif
 
-static int igb_suspend(struct device *);
-static int igb_resume(struct device *);
-static int igb_runtime_suspend(struct device *dev);
-static int igb_runtime_resume(struct device *dev);
-static int igb_runtime_idle(struct device *dev);
-#ifdef CONFIG_PM
-static const struct dev_pm_ops igb_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(igb_suspend, igb_resume)
-	SET_RUNTIME_PM_OPS(igb_runtime_suspend, igb_runtime_resume,
-			igb_runtime_idle)
-};
-#endif
-static void igb_shutdown(struct pci_dev *);
-static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs);
 #ifdef CONFIG_IGB_DCA
 static int igb_notify_dca(struct notifier_block *, unsigned long, void *);
 static struct notifier_block dca_notifier = {
@@ -202,7 +184,7 @@ static struct notifier_block dca_notifier = {
 #endif
 #ifdef CONFIG_PCI_IOV
 static unsigned int max_vfs;
-module_param(max_vfs, uint, 0);
+module_param(max_vfs, uint, 0444);
 MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate per physical function");
 #endif /* CONFIG_PCI_IOV */
 
@@ -219,20 +201,6 @@ static const struct pci_error_handlers igb_err_handler = {
 
 static void igb_init_dmac(struct igb_adapter *adapter, u32 pba);
 
-static struct pci_driver igb_driver = {
-	.name     = igb_driver_name,
-	.id_table = igb_pci_tbl,
-	.probe    = igb_probe,
-	.remove   = igb_remove,
-#ifdef CONFIG_PM
-	.driver.pm = &igb_pm_ops,
-#endif
-	.shutdown = igb_shutdown,
-	.sriov_configure = igb_pci_sriov_configure,
-	.err_handler = &igb_err_handler
-};
-
-MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
 MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver");
 MODULE_LICENSE("GPL v2");
 
@@ -504,12 +472,17 @@ rx_ring_summary:
 
 		for (i = 0; i < rx_ring->count; i++) {
 			const char *next_desc;
-			struct igb_rx_buffer *buffer_info;
-			buffer_info = &rx_ring->rx_buffer_info[i];
+			dma_addr_t dma = (dma_addr_t)0;
+			struct igb_rx_buffer *buffer_info = NULL;
 			rx_desc = IGB_RX_DESC(rx_ring, i);
 			u0 = (struct my_u0 *)rx_desc;
 			staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
 
+			if (!rx_ring->xsk_pool) {
+				buffer_info = &rx_ring->rx_buffer_info[i];
+				dma = buffer_info->dma;
+			}
+
 			if (i == rx_ring->next_to_use)
 				next_desc = " NTU";
 			else if (i == rx_ring->next_to_clean)
@@ -529,11 +502,11 @@ rx_ring_summary:
 					"R  ", i,
 					le64_to_cpu(u0->a),
 					le64_to_cpu(u0->b),
-					(u64)buffer_info->dma,
+					(u64)dma,
 					next_desc);
 
 				if (netif_msg_pktdata(adapter) &&
-				    buffer_info->dma && buffer_info->page) {
+				    buffer_info && dma && buffer_info->page) {
 					print_hex_dump(KERN_INFO, "",
 					  DUMP_PREFIX_ADDRESS,
 					  16, 1,
@@ -647,6 +620,8 @@ struct net_device *igb_get_hw_dev(struct e1000_hw *hw)
 	return adapter->netdev;
 }
 
+static struct pci_driver igb_driver;
+
 /**
  *  igb_init_module - Driver Registration Routine
  *
@@ -664,6 +639,10 @@ static int __init igb_init_module(void)
 	dca_register_notify(&dca_notifier);
 #endif
 	ret = pci_register_driver(&igb_driver);
+#ifdef CONFIG_IGB_DCA
+	if (ret)
+		dca_unregister_notify(&dca_notifier);
+#endif
 	return ret;
 }
 
@@ -1231,7 +1210,7 @@ static int igb_alloc_q_vector(struct igb_adapter *adapter,
 	/* initialize pointer to rings */
 	ring = q_vector->ring;
 
-	/* intialize ITR */
+	/* initialize ITR */
 	if (rxr_count) {
 		/* rx or rx/tx vector */
 		if (!adapter->rx_itr_setting || adapter->rx_itr_setting > 3)
@@ -2013,7 +1992,11 @@ static void igb_configure(struct igb_adapter *adapter)
 	 */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct igb_ring *ring = adapter->rx_ring[i];
-		igb_alloc_rx_buffers(ring, igb_desc_unused(ring));
+		if (ring->xsk_pool)
+			igb_alloc_rx_buffers_zc(ring, ring->xsk_pool,
+						igb_desc_unused(ring));
+		else
+			igb_alloc_rx_buffers(ring, igb_desc_unused(ring));
 	}
 }
 
@@ -2513,7 +2496,7 @@ static int igb_set_features(struct net_device *netdev,
 static int igb_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 			   struct net_device *dev,
 			   const unsigned char *addr, u16 vid,
-			   u16 flags,
+			   u16 flags, bool *notified,
 			   struct netlink_ext_ack *extack)
 {
 	/* guarantee we can provide a unique filter for the unicast address */
@@ -2538,7 +2521,7 @@ igb_features_check(struct sk_buff *skb, struct net_device *dev,
 	unsigned int network_hdr_len, mac_hdr_len;
 
 	/* Make certain the headers can be described by a context descriptor */
-	mac_hdr_len = skb_network_header(skb) - skb->data;
+	mac_hdr_len = skb_network_offset(skb);
 	if (unlikely(mac_hdr_len > IGB_MAX_MAC_HDR_LEN))
 		return features & ~(NETIF_F_HW_CSUM |
 				    NETIF_F_SCTP_CRC |
@@ -2624,6 +2607,9 @@ static int igb_parse_cls_flower(struct igb_adapter *adapter,
 		return -EOPNOTSUPP;
 	}
 
+	if (flow_rule_match_has_control_flags(rule, extack))
+		return -EOPNOTSUPP;
+
 	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
 		struct flow_match_eth_addrs match;
 
@@ -2931,34 +2917,20 @@ static int igb_xdp_setup(struct net_device *dev, struct netdev_bpf *bpf)
 
 static int igb_xdp(struct net_device *dev, struct netdev_bpf *xdp)
 {
+	struct igb_adapter *adapter = netdev_priv(dev);
+
 	switch (xdp->command) {
 	case XDP_SETUP_PROG:
 		return igb_xdp_setup(dev, xdp);
+	case XDP_SETUP_XSK_POOL:
+		return igb_xsk_pool_setup(adapter, xdp->xsk.pool,
+					  xdp->xsk.queue_id);
 	default:
 		return -EINVAL;
 	}
 }
 
-static void igb_xdp_ring_update_tail(struct igb_ring *ring)
-{
-	/* Force memory writes to complete before letting h/w know there
-	 * are new descriptors to fetch.
-	 */
-	wmb();
-	writel(ring->next_to_use, ring->tail);
-}
-
-static struct igb_ring *igb_xdp_tx_queue_mapping(struct igb_adapter *adapter)
-{
-	unsigned int r_idx = smp_processor_id();
-
-	if (r_idx >= adapter->num_tx_queues)
-		r_idx = r_idx % adapter->num_tx_queues;
-
-	return adapter->tx_ring[r_idx];
-}
-
-static int igb_xdp_xmit_back(struct igb_adapter *adapter, struct xdp_buff *xdp)
+int igb_xdp_xmit_back(struct igb_adapter *adapter, struct xdp_buff *xdp)
 {
 	struct xdp_frame *xdpf = xdp_convert_buff_to_frame(xdp);
 	int cpu = smp_processor_id();
@@ -2972,7 +2944,8 @@ static int igb_xdp_xmit_back(struct igb_adapter *adapter, struct xdp_buff *xdp)
 	/* During program transitions its possible adapter->xdp_prog is assigned
 	 * but ring has not been configured yet. In this case simply abort xmit.
 	 */
-	tx_ring = adapter->xdp_prog ? igb_xdp_tx_queue_mapping(adapter) : NULL;
+	tx_ring = igb_xdp_is_enabled(adapter) ?
+		igb_xdp_tx_queue_mapping(adapter) : NULL;
 	if (unlikely(!tx_ring))
 		return IGB_XDP_CONSUMED;
 
@@ -3005,10 +2978,14 @@ static int igb_xdp_xmit(struct net_device *dev, int n,
 	/* During program transitions its possible adapter->xdp_prog is assigned
 	 * but ring has not been configured yet. In this case simply abort xmit.
 	 */
-	tx_ring = adapter->xdp_prog ? igb_xdp_tx_queue_mapping(adapter) : NULL;
+	tx_ring = igb_xdp_is_enabled(adapter) ?
+		igb_xdp_tx_queue_mapping(adapter) : NULL;
 	if (unlikely(!tx_ring))
 		return -ENXIO;
 
+	if (unlikely(test_bit(IGB_RING_FLAG_TX_DISABLED, &tx_ring->flags)))
+		return -ENXIO;
+
 	nq = txring_txq(tx_ring);
 	__netif_tx_lock(nq, cpu);
 
@@ -3025,11 +3002,11 @@ static int igb_xdp_xmit(struct net_device *dev, int n,
 		nxmit++;
 	}
 
-	__netif_tx_unlock(nq);
-
 	if (unlikely(flags & XDP_XMIT_FLUSH))
 		igb_xdp_ring_update_tail(tx_ring);
 
+	__netif_tx_unlock(nq);
+
 	return nxmit;
 }
 
@@ -3059,6 +3036,7 @@ static const struct net_device_ops igb_netdev_ops = {
 	.ndo_setup_tc		= igb_setup_tc,
 	.ndo_bpf		= igb_xdp,
 	.ndo_xdp_xmit		= igb_xdp_xmit,
+	.ndo_xsk_wakeup         = igb_xsk_wakeup,
 };
 
 /**
@@ -3355,7 +3333,8 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	netdev->priv_flags |= IFF_SUPP_NOFCS;
 
 	netdev->priv_flags |= IFF_UNICAST_FLT;
-	netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT;
+	netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+			       NETDEV_XDP_ACT_XSK_ZEROCOPY;
 
 	/* MTU range: 68 - 9216 */
 	netdev->min_mtu = ETH_MIN_MTU;
@@ -3927,7 +3906,7 @@ static void igb_remove(struct pci_dev *pdev)
  *
  *  This function initializes the vf specific data storage and then attempts to
  *  allocate the VFs.  The reason for ordering it this way is because it is much
- *  mor expensive time wise to disable SR-IOV than it is to allocate and free
+ *  more expensive time wise to disable SR-IOV than it is to allocate and free
  *  the memory for the VFs.
  **/
 static void igb_probe_vfs(struct igb_adapter *adapter)
@@ -4381,6 +4360,8 @@ void igb_configure_tx_ring(struct igb_adapter *adapter,
 	u64 tdba = ring->dma;
 	int reg_idx = ring->reg_idx;
 
+	WRITE_ONCE(ring->xsk_pool, igb_xsk_pool(adapter, ring));
+
 	wr32(E1000_TDLEN(reg_idx),
 	     ring->count * sizeof(union e1000_adv_tx_desc));
 	wr32(E1000_TDBAL(reg_idx),
@@ -4441,7 +4422,8 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring)
 	if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq))
 		xdp_rxq_info_unreg(&rx_ring->xdp_rxq);
 	res = xdp_rxq_info_reg(&rx_ring->xdp_rxq, rx_ring->netdev,
-			       rx_ring->queue_index, 0);
+			       rx_ring->queue_index,
+			       rx_ring->q_vector->napi.napi_id);
 	if (res < 0) {
 		dev_err(dev, "Failed to register xdp_rxq index %u\n",
 			rx_ring->queue_index);
@@ -4737,12 +4719,17 @@ void igb_setup_srrctl(struct igb_adapter *adapter, struct igb_ring *ring)
 	struct e1000_hw *hw = &adapter->hw;
 	int reg_idx = ring->reg_idx;
 	u32 srrctl = 0;
+	u32 buf_size;
 
-	srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT;
-	if (ring_uses_large_buffer(ring))
-		srrctl |= IGB_RXBUFFER_3072 >> E1000_SRRCTL_BSIZEPKT_SHIFT;
+	if (ring->xsk_pool)
+		buf_size = xsk_pool_get_rx_frame_size(ring->xsk_pool);
+	else if (ring_uses_large_buffer(ring))
+		buf_size = IGB_RXBUFFER_3072;
 	else
-		srrctl |= IGB_RXBUFFER_2048 >> E1000_SRRCTL_BSIZEPKT_SHIFT;
+		buf_size = IGB_RXBUFFER_2048;
+
+	srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT;
+	srrctl |= buf_size >> E1000_SRRCTL_BSIZEPKT_SHIFT;
 	srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
 	if (hw->mac.type >= e1000_82580)
 		srrctl |= E1000_SRRCTL_TIMESTAMP;
@@ -4774,8 +4761,17 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
 	u32 rxdctl = 0;
 
 	xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq);
-	WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
-					   MEM_TYPE_PAGE_SHARED, NULL));
+	WRITE_ONCE(ring->xsk_pool, igb_xsk_pool(adapter, ring));
+	if (ring->xsk_pool) {
+		WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
+						   MEM_TYPE_XSK_BUFF_POOL,
+						   NULL));
+		xsk_pool_set_rxq_info(ring->xsk_pool, &ring->xdp_rxq);
+	} else {
+		WARN_ON(xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
+						   MEM_TYPE_PAGE_SHARED,
+						   NULL));
+	}
 
 	/* disable the queue */
 	wr32(E1000_RXDCTL(reg_idx), 0);
@@ -4802,9 +4798,12 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
 	rxdctl |= IGB_RX_HTHRESH << 8;
 	rxdctl |= IGB_RX_WTHRESH << 16;
 
-	/* initialize rx_buffer_info */
-	memset(ring->rx_buffer_info, 0,
-	       sizeof(struct igb_rx_buffer) * ring->count);
+	if (ring->xsk_pool)
+		memset(ring->rx_buffer_info_zc, 0,
+		       sizeof(*ring->rx_buffer_info_zc) * ring->count);
+	else
+		memset(ring->rx_buffer_info, 0,
+		       sizeof(*ring->rx_buffer_info) * ring->count);
 
 	/* initialize Rx descriptor 0 */
 	rx_desc = IGB_RX_DESC(ring, 0);
@@ -4833,6 +4832,7 @@ static void igb_set_rx_buffer_len(struct igb_adapter *adapter,
 
 #if (PAGE_SIZE < 8192)
 	if (adapter->max_frame_size > IGB_MAX_FRAME_BUILD_SKB ||
+	    IGB_2K_TOO_SMALL_WITH_PADDING ||
 	    rd32(E1000_RCTL) & E1000_RCTL_SBP)
 		set_ring_uses_large_buffer(rx_ring);
 #endif
@@ -4904,19 +4904,24 @@ static void igb_free_all_tx_resources(struct igb_adapter *adapter)
  *  igb_clean_tx_ring - Free Tx Buffers
  *  @tx_ring: ring to be cleaned
  **/
-static void igb_clean_tx_ring(struct igb_ring *tx_ring)
+void igb_clean_tx_ring(struct igb_ring *tx_ring)
 {
 	u16 i = tx_ring->next_to_clean;
 	struct igb_tx_buffer *tx_buffer = &tx_ring->tx_buffer_info[i];
+	u32 xsk_frames = 0;
 
 	while (i != tx_ring->next_to_use) {
 		union e1000_adv_tx_desc *eop_desc, *tx_desc;
 
 		/* Free all the Tx ring sk_buffs or xdp frames */
-		if (tx_buffer->type == IGB_TYPE_SKB)
+		if (tx_buffer->type == IGB_TYPE_SKB) {
 			dev_kfree_skb_any(tx_buffer->skb);
-		else
+		} else if (tx_buffer->type == IGB_TYPE_XDP) {
 			xdp_return_frame(tx_buffer->xdpf);
+		} else if (tx_buffer->type == IGB_TYPE_XSK) {
+			xsk_frames++;
+			goto skip_for_xsk;
+		}
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
@@ -4947,6 +4952,7 @@ static void igb_clean_tx_ring(struct igb_ring *tx_ring)
 					       DMA_TO_DEVICE);
 		}
 
+skip_for_xsk:
 		tx_buffer->next_to_watch = NULL;
 
 		/* move us one more past the eop_desc for start of next pkt */
@@ -4961,6 +4967,9 @@ static void igb_clean_tx_ring(struct igb_ring *tx_ring)
 	/* reset BQL for queue */
 	netdev_tx_reset_queue(txring_txq(tx_ring));
 
+	if (tx_ring->xsk_pool && xsk_frames)
+		xsk_tx_completed(tx_ring->xsk_pool, xsk_frames);
+
 	/* reset next_to_use and next_to_clean */
 	tx_ring->next_to_use = 0;
 	tx_ring->next_to_clean = 0;
@@ -4991,8 +5000,13 @@ void igb_free_rx_resources(struct igb_ring *rx_ring)
 
 	rx_ring->xdp_prog = NULL;
 	xdp_rxq_info_unreg(&rx_ring->xdp_rxq);
-	vfree(rx_ring->rx_buffer_info);
-	rx_ring->rx_buffer_info = NULL;
+	if (rx_ring->xsk_pool) {
+		vfree(rx_ring->rx_buffer_info_zc);
+		rx_ring->rx_buffer_info_zc = NULL;
+	} else {
+		vfree(rx_ring->rx_buffer_info);
+		rx_ring->rx_buffer_info = NULL;
+	}
 
 	/* if not set, then don't free */
 	if (!rx_ring->desc)
@@ -5023,13 +5037,18 @@ static void igb_free_all_rx_resources(struct igb_adapter *adapter)
  *  igb_clean_rx_ring - Free Rx Buffers per Queue
  *  @rx_ring: ring to free buffers from
  **/
-static void igb_clean_rx_ring(struct igb_ring *rx_ring)
+void igb_clean_rx_ring(struct igb_ring *rx_ring)
 {
 	u16 i = rx_ring->next_to_clean;
 
 	dev_kfree_skb(rx_ring->skb);
 	rx_ring->skb = NULL;
 
+	if (rx_ring->xsk_pool) {
+		igb_clean_rx_ring_zc(rx_ring);
+		goto skip_for_xsk;
+	}
+
 	/* Free all the Rx ring sk_buffs */
 	while (i != rx_ring->next_to_alloc) {
 		struct igb_rx_buffer *buffer_info = &rx_ring->rx_buffer_info[i];
@@ -5057,6 +5076,7 @@ static void igb_clean_rx_ring(struct igb_ring *rx_ring)
 			i = 0;
 	}
 
+skip_for_xsk:
 	rx_ring->next_to_alloc = 0;
 	rx_ring->next_to_clean = 0;
 	rx_ring->next_to_use = 0;
@@ -6483,6 +6503,9 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 		return NETDEV_TX_BUSY;
 	}
 
+	if (unlikely(test_bit(IGB_RING_FLAG_TX_DISABLED, &tx_ring->flags)))
+		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->type = IGB_TYPE_SKB;
@@ -6638,7 +6661,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	int max_frame = new_mtu + IGB_ETH_PKT_HDR_PAD;
 
-	if (adapter->xdp_prog) {
+	if (igb_xdp_is_enabled(adapter)) {
 		int i;
 
 		for (i = 0; i < adapter->num_rx_queues; i++) {
@@ -6668,7 +6691,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 
 	netdev_dbg(netdev, "changing MTU from %d to %d\n",
 		   netdev->mtu, new_mtu);
-	netdev->mtu = new_mtu;
+	WRITE_ONCE(netdev->mtu, new_mtu);
 
 	if (netif_running(netdev))
 		igb_up(adapter);
@@ -6984,45 +7007,42 @@ static void igb_extts(struct igb_adapter *adapter, int tsintr_tt)
 
 static void igb_tsync_interrupt(struct igb_adapter *adapter)
 {
+	const u32 mask = (TSINTR_SYS_WRAP | E1000_TSICR_TXTS |
+			  TSINTR_TT0 | TSINTR_TT1 |
+			  TSINTR_AUTT0 | TSINTR_AUTT1);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 ack = 0, tsicr = rd32(E1000_TSICR);
+	u32 tsicr = rd32(E1000_TSICR);
 	struct ptp_clock_event event;
 
+	if (hw->mac.type == e1000_82580) {
+		/* 82580 has a hardware bug that requires an explicit
+		 * write to clear the TimeSync interrupt cause.
+		 */
+		wr32(E1000_TSICR, tsicr & mask);
+	}
+
 	if (tsicr & TSINTR_SYS_WRAP) {
 		event.type = PTP_CLOCK_PPS;
 		if (adapter->ptp_caps.pps)
 			ptp_clock_event(adapter->ptp_clock, &event);
-		ack |= TSINTR_SYS_WRAP;
 	}
 
 	if (tsicr & E1000_TSICR_TXTS) {
 		/* retrieve hardware timestamp */
 		schedule_work(&adapter->ptp_tx_work);
-		ack |= E1000_TSICR_TXTS;
 	}
 
-	if (tsicr & TSINTR_TT0) {
+	if (tsicr & TSINTR_TT0)
 		igb_perout(adapter, 0);
-		ack |= TSINTR_TT0;
-	}
 
-	if (tsicr & TSINTR_TT1) {
+	if (tsicr & TSINTR_TT1)
 		igb_perout(adapter, 1);
-		ack |= TSINTR_TT1;
-	}
 
-	if (tsicr & TSINTR_AUTT0) {
+	if (tsicr & TSINTR_AUTT0)
 		igb_extts(adapter, 0);
-		ack |= TSINTR_AUTT0;
-	}
 
-	if (tsicr & TSINTR_AUTT1) {
+	if (tsicr & TSINTR_AUTT1)
 		igb_extts(adapter, 1);
-		ack |= TSINTR_AUTT1;
-	}
-
-	/* acknowledge the interrupts */
-	wr32(E1000_TSICR, ack);
 }
 
 static irqreturn_t igb_msix_other(int irq, void *data)
@@ -8214,6 +8234,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	struct igb_q_vector *q_vector = container_of(napi,
 						     struct igb_q_vector,
 						     napi);
+	struct xsk_buff_pool *xsk_pool;
 	bool clean_complete = true;
 	int work_done = 0;
 
@@ -8225,7 +8246,12 @@ static int igb_poll(struct napi_struct *napi, int budget)
 		clean_complete = igb_clean_tx_irq(q_vector, budget);
 
 	if (q_vector->rx.ring) {
-		int cleaned = igb_clean_rx_irq(q_vector, budget);
+		int cleaned;
+
+		xsk_pool = READ_ONCE(q_vector->rx.ring->xsk_pool);
+		cleaned = xsk_pool ?
+			igb_clean_rx_irq_zc(q_vector, xsk_pool, budget) :
+			igb_clean_rx_irq(q_vector, budget);
 
 		work_done += cleaned;
 		if (cleaned >= budget)
@@ -8254,13 +8280,18 @@ static int igb_poll(struct napi_struct *napi, int budget)
  **/
 static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)
 {
-	struct igb_adapter *adapter = q_vector->adapter;
-	struct igb_ring *tx_ring = q_vector->tx.ring;
-	struct igb_tx_buffer *tx_buffer;
-	union e1000_adv_tx_desc *tx_desc;
 	unsigned int total_bytes = 0, total_packets = 0;
+	struct igb_adapter *adapter = q_vector->adapter;
 	unsigned int budget = q_vector->tx.work_limit;
+	struct igb_ring *tx_ring = q_vector->tx.ring;
 	unsigned int i = tx_ring->next_to_clean;
+	union e1000_adv_tx_desc *tx_desc;
+	struct igb_tx_buffer *tx_buffer;
+	struct xsk_buff_pool *xsk_pool;
+	int cpu = smp_processor_id();
+	bool xsk_xmit_done = true;
+	struct netdev_queue *nq;
+	u32 xsk_frames = 0;
 
 	if (test_bit(__IGB_DOWN, &adapter->state))
 		return true;
@@ -8291,10 +8322,14 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)
 		total_packets += tx_buffer->gso_segs;
 
 		/* free the skb */
-		if (tx_buffer->type == IGB_TYPE_SKB)
+		if (tx_buffer->type == IGB_TYPE_SKB) {
 			napi_consume_skb(tx_buffer->skb, napi_budget);
-		else
+		} else if (tx_buffer->type == IGB_TYPE_XDP) {
 			xdp_return_frame(tx_buffer->xdpf);
+		} else if (tx_buffer->type == IGB_TYPE_XSK) {
+			xsk_frames++;
+			goto skip_for_xsk;
+		}
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
@@ -8326,6 +8361,7 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)
 			}
 		}
 
+skip_for_xsk:
 		/* move us one more past the eop_desc for start of next pkt */
 		tx_buffer++;
 		tx_desc++;
@@ -8354,6 +8390,21 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)
 	q_vector->tx.total_bytes += total_bytes;
 	q_vector->tx.total_packets += total_packets;
 
+	xsk_pool = READ_ONCE(tx_ring->xsk_pool);
+	if (xsk_pool) {
+		if (xsk_frames)
+			xsk_tx_completed(xsk_pool, xsk_frames);
+		if (xsk_uses_need_wakeup(xsk_pool))
+			xsk_set_tx_need_wakeup(xsk_pool);
+
+		nq = txring_txq(tx_ring);
+		__netif_tx_lock(nq, cpu);
+		/* Avoid transmit queue timeout since we share it with the slow path */
+		txq_trans_cond_update(nq);
+		xsk_xmit_done = igb_xmit_zc(tx_ring, xsk_pool);
+		__netif_tx_unlock(nq);
+	}
+
 	if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) {
 		struct e1000_hw *hw = &adapter->hw;
 
@@ -8416,7 +8467,7 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)
 		}
 	}
 
-	return !!budget;
+	return !!budget && xsk_xmit_done;
 }
 
 /**
@@ -8607,9 +8658,8 @@ static struct sk_buff *igb_build_skb(struct igb_ring *rx_ring,
 	return skb;
 }
 
-static struct sk_buff *igb_run_xdp(struct igb_adapter *adapter,
-				   struct igb_ring *rx_ring,
-				   struct xdp_buff *xdp)
+static int igb_run_xdp(struct igb_adapter *adapter, struct igb_ring *rx_ring,
+		       struct xdp_buff *xdp)
 {
 	int err, result = IGB_XDP_PASS;
 	struct bpf_prog *xdp_prog;
@@ -8649,7 +8699,7 @@ out_failure:
 		break;
 	}
 xdp_out:
-	return ERR_PTR(-result);
+	return result;
 }
 
 static unsigned int igb_rx_frame_truesize(struct igb_ring *rx_ring,
@@ -8775,10 +8825,6 @@ static bool igb_cleanup_headers(struct igb_ring *rx_ring,
 				union e1000_adv_rx_desc *rx_desc,
 				struct sk_buff *skb)
 {
-	/* XDP packets use error pointer so abort at this point */
-	if (IS_ERR(skb))
-		return true;
-
 	if (unlikely((igb_test_staterr(rx_desc,
 				       E1000_RXDEXT_ERR_FRAME_ERR_MASK)))) {
 		struct net_device *netdev = rx_ring->netdev;
@@ -8805,9 +8851,9 @@ static bool igb_cleanup_headers(struct igb_ring *rx_ring,
  *  order to populate the hash, checksum, VLAN, timestamp, protocol, and
  *  other fields within the skb.
  **/
-static void igb_process_skb_fields(struct igb_ring *rx_ring,
-				   union e1000_adv_rx_desc *rx_desc,
-				   struct sk_buff *skb)
+void igb_process_skb_fields(struct igb_ring *rx_ring,
+			    union e1000_adv_rx_desc *rx_desc,
+			    struct sk_buff *skb)
 {
 	struct net_device *dev = rx_ring->netdev;
 
@@ -8889,17 +8935,50 @@ static void igb_put_rx_buffer(struct igb_ring *rx_ring,
 	rx_buffer->page = NULL;
 }
 
+void igb_finalize_xdp(struct igb_adapter *adapter, unsigned int status)
+{
+	int cpu = smp_processor_id();
+	struct netdev_queue *nq;
+
+	if (status & IGB_XDP_REDIR)
+		xdp_do_flush();
+
+	if (status & IGB_XDP_TX) {
+		struct igb_ring *tx_ring = igb_xdp_tx_queue_mapping(adapter);
+
+		nq = txring_txq(tx_ring);
+		__netif_tx_lock(nq, cpu);
+		igb_xdp_ring_update_tail(tx_ring);
+		__netif_tx_unlock(nq);
+	}
+}
+
+void igb_update_rx_stats(struct igb_q_vector *q_vector, unsigned int packets,
+			 unsigned int bytes)
+{
+	struct igb_ring *ring = q_vector->rx.ring;
+
+	u64_stats_update_begin(&ring->rx_syncp);
+	ring->rx_stats.packets += packets;
+	ring->rx_stats.bytes += bytes;
+	u64_stats_update_end(&ring->rx_syncp);
+
+	q_vector->rx.total_packets += packets;
+	q_vector->rx.total_bytes += bytes;
+}
+
 static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 {
+	unsigned int total_bytes = 0, total_packets = 0;
 	struct igb_adapter *adapter = q_vector->adapter;
 	struct igb_ring *rx_ring = q_vector->rx.ring;
-	struct sk_buff *skb = rx_ring->skb;
-	unsigned int total_bytes = 0, total_packets = 0;
 	u16 cleaned_count = igb_desc_unused(rx_ring);
+	struct sk_buff *skb = rx_ring->skb;
 	unsigned int xdp_xmit = 0;
 	struct xdp_buff xdp;
 	u32 frame_sz = 0;
 	int rx_buf_pgcnt;
+	int xdp_res = 0;
 
 	/* Frame size depend on rx_ring setup when PAGE_SIZE=4K */
 #if (PAGE_SIZE < 8192)
@@ -8957,12 +9036,10 @@ static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 			/* At larger PAGE_SIZE, frame_sz depend on len size */
 			xdp.frame_sz = igb_rx_frame_truesize(rx_ring, size);
 #endif
-			skb = igb_run_xdp(adapter, rx_ring, &xdp);
+			xdp_res = igb_run_xdp(adapter, rx_ring, &xdp);
 		}
 
-		if (IS_ERR(skb)) {
-			unsigned int xdp_res = -PTR_ERR(skb);
-
+		if (xdp_res) {
 			if (xdp_res & (IGB_XDP_TX | IGB_XDP_REDIR)) {
 				xdp_xmit |= xdp_res;
 				igb_rx_buffer_flip(rx_ring, rx_buffer, size);
@@ -8981,7 +9058,7 @@ static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 						&xdp, timestamp);
 
 		/* exit if we failed to retrieve a buffer */
-		if (!skb) {
+		if (!xdp_res && !skb) {
 			rx_ring->rx_stats.alloc_failed++;
 			rx_buffer->pagecnt_bias++;
 			break;
@@ -8995,7 +9072,7 @@ static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 			continue;
 
 		/* verify the packet layout is correct */
-		if (igb_cleanup_headers(rx_ring, rx_desc, skb)) {
+		if (xdp_res || igb_cleanup_headers(rx_ring, rx_desc, skb)) {
 			skb = NULL;
 			continue;
 		}
@@ -9018,21 +9095,10 @@ static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 	/* place incomplete frames back on ring for completion */
 	rx_ring->skb = skb;
 
-	if (xdp_xmit & IGB_XDP_REDIR)
-		xdp_do_flush();
-
-	if (xdp_xmit & IGB_XDP_TX) {
-		struct igb_ring *tx_ring = igb_xdp_tx_queue_mapping(adapter);
-
-		igb_xdp_ring_update_tail(tx_ring);
-	}
+	if (xdp_xmit)
+		igb_finalize_xdp(adapter, xdp_xmit);
 
-	u64_stats_update_begin(&rx_ring->rx_syncp);
-	rx_ring->rx_stats.packets += total_packets;
-	rx_ring->rx_stats.bytes += total_bytes;
-	u64_stats_update_end(&rx_ring->rx_syncp);
-	q_vector->rx.total_packets += total_packets;
-	q_vector->rx.total_bytes += total_bytes;
+	igb_update_rx_stats(q_vector, total_packets, total_bytes);
 
 	if (cleaned_count)
 		igb_alloc_rx_buffers(rx_ring, cleaned_count);
@@ -9176,6 +9242,10 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 			return -EIO;
 		break;
 	case SIOCSMIIREG:
+		if (igb_write_phy_reg(&adapter->hw, data->reg_num & 0x1F,
+				      data->val_in))
+			return -EIO;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -9466,12 +9536,12 @@ static void igb_deliver_wake_packet(struct net_device *netdev)
 	netif_rx(skb);
 }
 
-static int __maybe_unused igb_suspend(struct device *dev)
+static int igb_suspend(struct device *dev)
 {
 	return __igb_shutdown(to_pci_dev(dev), NULL, 0);
 }
 
-static int __maybe_unused __igb_resume(struct device *dev, bool rpm)
+static int __igb_resume(struct device *dev, bool rpm)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -9527,12 +9597,12 @@ static int __maybe_unused __igb_resume(struct device *dev, bool rpm)
 	return err;
 }
 
-static int __maybe_unused igb_resume(struct device *dev)
+static int igb_resume(struct device *dev)
 {
 	return __igb_resume(dev, false);
 }
 
-static int __maybe_unused igb_runtime_idle(struct device *dev)
+static int igb_runtime_idle(struct device *dev)
 {
 	struct net_device *netdev = dev_get_drvdata(dev);
 	struct igb_adapter *adapter = netdev_priv(netdev);
@@ -9543,12 +9613,12 @@ static int __maybe_unused igb_runtime_idle(struct device *dev)
 	return -EBUSY;
 }
 
-static int __maybe_unused igb_runtime_suspend(struct device *dev)
+static int igb_runtime_suspend(struct device *dev)
 {
 	return __igb_shutdown(to_pci_dev(dev), NULL, 1);
 }
 
-static int __maybe_unused igb_runtime_resume(struct device *dev)
+static int igb_runtime_resume(struct device *dev)
 {
 	return __igb_resume(dev, true);
 }
@@ -9665,6 +9735,10 @@ static void igb_io_resume(struct pci_dev *pdev)
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
 	if (netif_running(netdev)) {
+		if (!test_bit(__IGB_DOWN, &adapter->state)) {
+			dev_dbg(&pdev->dev, "Resuming from non-fatal error, do nothing.\n");
+			return;
+		}
 		if (igb_up(adapter)) {
 			dev_err(&pdev->dev, "igb_up failed after reset\n");
 			return;
@@ -10170,4 +10244,20 @@ static void igb_nfc_filter_restore(struct igb_adapter *adapter)
 
 	spin_unlock(&adapter->nfc_lock);
 }
+
+static _DEFINE_DEV_PM_OPS(igb_pm_ops, igb_suspend, igb_resume,
+			  igb_runtime_suspend, igb_runtime_resume,
+			  igb_runtime_idle);
+
+static struct pci_driver igb_driver = {
+	.name     = igb_driver_name,
+	.id_table = igb_pci_tbl,
+	.probe    = igb_probe,
+	.remove   = igb_remove,
+	.driver.pm = pm_ptr(&igb_pm_ops),
+	.shutdown = igb_shutdown,
+	.sriov_configure = igb_pci_sriov_configure,
+	.err_handler = &igb_err_handler
+};
+
 /* igb_main.c */