Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 719 insertions, 0 deletions

diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
new file mode 100644
index 000000000..5b564d348
--- /dev/null
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -0,0 +1,719 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/aer.h>
+#include <linux/etherdevice.h>
+#include <net/ip.h>
+#include <linux/phy.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_lib.h"
+#include "ngbe_type.h"
+#include "ngbe_mdio.h"
+#include "ngbe_hw.h"
+#include "ngbe_ethtool.h"
+
+char ngbe_driver_name[] = "ngbe";
+
+/* ngbe_pci_tbl - PCI Device ID Table
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id ngbe_pci_tbl[] = {
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL_W), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2S), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4S), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2S), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4S), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860LC), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1), 0},
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1L), 0},
+	/* required last entry */
+	{ .device = 0 }
+};
+
+/**
+ *  ngbe_init_type_code - Initialize the shared code
+ *  @wx: pointer to hardware structure
+ **/
+static void ngbe_init_type_code(struct wx *wx)
+{
+	int wol_mask = 0, ncsi_mask = 0;
+	u16 type_mask = 0, val;
+
+	wx->mac.type = wx_mac_em;
+	type_mask = (u16)(wx->subsystem_device_id & NGBE_OEM_MASK);
+	ncsi_mask = wx->subsystem_device_id & NGBE_NCSI_MASK;
+	wol_mask = wx->subsystem_device_id & NGBE_WOL_MASK;
+
+	val = rd32(wx, WX_CFG_PORT_ST);
+	wx->mac_type = (val & BIT(7)) >> 7 ?
+		       em_mac_type_rgmii :
+		       em_mac_type_mdi;
+
+	wx->wol_enabled = (wol_mask == NGBE_WOL_SUP) ? 1 : 0;
+	wx->ncsi_enabled = (ncsi_mask == NGBE_NCSI_MASK ||
+			   type_mask == NGBE_SUBID_OCP_CARD) ? 1 : 0;
+
+	switch (type_mask) {
+	case NGBE_SUBID_LY_YT8521S_SFP:
+	case NGBE_SUBID_LY_M88E1512_SFP:
+	case NGBE_SUBID_YT8521S_SFP_GPIO:
+	case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO:
+		wx->gpio_ctrl = 1;
+		break;
+	default:
+		wx->gpio_ctrl = 0;
+		break;
+	}
+}
+
+/**
+ * ngbe_init_rss_key - Initialize wx RSS key
+ * @wx: device handle
+ *
+ * Allocates and initializes the RSS key if it is not allocated.
+ **/
+static inline int ngbe_init_rss_key(struct wx *wx)
+{
+	u32 *rss_key;
+
+	if (!wx->rss_key) {
+		rss_key = kzalloc(WX_RSS_KEY_SIZE, GFP_KERNEL);
+		if (unlikely(!rss_key))
+			return -ENOMEM;
+
+		netdev_rss_key_fill(rss_key, WX_RSS_KEY_SIZE);
+		wx->rss_key = rss_key;
+	}
+
+	return 0;
+}
+
+/**
+ * ngbe_sw_init - Initialize general software structures
+ * @wx: board private structure to initialize
+ **/
+static int ngbe_sw_init(struct wx *wx)
+{
+	struct pci_dev *pdev = wx->pdev;
+	u16 msix_count = 0;
+	int err = 0;
+
+	wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	wx->mac.max_rx_queues = NGBE_MAX_RX_QUEUES;
+	wx->mac.max_tx_queues = NGBE_MAX_TX_QUEUES;
+	wx->mac.mcft_size = NGBE_MC_TBL_SIZE;
+	wx->mac.rx_pb_size = NGBE_RX_PB_SIZE;
+	wx->mac.tx_pb_size = NGBE_TDB_PB_SZ;
+
+	/* PCI config space info */
+	err = wx_sw_init(wx);
+	if (err < 0) {
+		wx_err(wx, "read of internal subsystem device id failed\n");
+		return err;
+	}
+
+	/* mac type, phy type , oem type */
+	ngbe_init_type_code(wx);
+
+	/* Set common capability flags and settings */
+	wx->max_q_vectors = NGBE_MAX_MSIX_VECTORS;
+	err = wx_get_pcie_msix_counts(wx, &msix_count, NGBE_MAX_MSIX_VECTORS);
+	if (err)
+		dev_err(&pdev->dev, "Do not support MSI-X\n");
+	wx->mac.max_msix_vectors = msix_count;
+
+	if (ngbe_init_rss_key(wx))
+		return -ENOMEM;
+
+	/* enable itr by default in dynamic mode */
+	wx->rx_itr_setting = 1;
+	wx->tx_itr_setting = 1;
+
+	/* set default ring sizes */
+	wx->tx_ring_count = NGBE_DEFAULT_TXD;
+	wx->rx_ring_count = NGBE_DEFAULT_RXD;
+
+	/* set default work limits */
+	wx->tx_work_limit = NGBE_DEFAULT_TX_WORK;
+	wx->rx_work_limit = NGBE_DEFAULT_RX_WORK;
+
+	return 0;
+}
+
+/**
+ * ngbe_irq_enable - Enable default interrupt generation settings
+ * @wx: board private structure
+ * @queues: enable all queues interrupts
+ **/
+static void ngbe_irq_enable(struct wx *wx, bool queues)
+{
+	u32 mask;
+
+	/* enable misc interrupt */
+	mask = NGBE_PX_MISC_IEN_MASK;
+
+	wr32(wx, WX_GPIO_DDR, WX_GPIO_DDR_0);
+	wr32(wx, WX_GPIO_INTEN, WX_GPIO_INTEN_0 | WX_GPIO_INTEN_1);
+	wr32(wx, WX_GPIO_INTTYPE_LEVEL, 0x0);
+	wr32(wx, WX_GPIO_POLARITY, wx->gpio_ctrl ? 0 : 0x3);
+
+	wr32(wx, WX_PX_MISC_IEN, mask);
+
+	/* mask interrupt */
+	if (queues)
+		wx_intr_enable(wx, NGBE_INTR_ALL);
+	else
+		wx_intr_enable(wx, NGBE_INTR_MISC(wx));
+}
+
+/**
+ * ngbe_intr - msi/legacy mode Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t ngbe_intr(int __always_unused irq, void *data)
+{
+	struct wx_q_vector *q_vector;
+	struct wx *wx  = data;
+	struct pci_dev *pdev;
+	u32 eicr;
+
+	q_vector = wx->q_vector[0];
+	pdev = wx->pdev;
+
+	eicr = wx_misc_isb(wx, WX_ISB_VEC0);
+	if (!eicr) {
+		/* shared interrupt alert!
+		 * the interrupt that we masked before the EICR read.
+		 */
+		if (netif_running(wx->netdev))
+			ngbe_irq_enable(wx, true);
+		return IRQ_NONE;        /* Not our interrupt */
+	}
+	wx->isb_mem[WX_ISB_VEC0] = 0;
+	if (!(pdev->msi_enabled))
+		wr32(wx, WX_PX_INTA, 1);
+
+	wx->isb_mem[WX_ISB_MISC] = 0;
+	/* would disable interrupts here but it is auto disabled */
+	napi_schedule_irqoff(&q_vector->napi);
+
+	if (netif_running(wx->netdev))
+		ngbe_irq_enable(wx, false);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ngbe_msix_other(int __always_unused irq, void *data)
+{
+	struct wx *wx = data;
+
+	/* re-enable the original interrupt state, no lsc, no queues */
+	if (netif_running(wx->netdev))
+		ngbe_irq_enable(wx, false);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * ngbe_request_msix_irqs - Initialize MSI-X interrupts
+ * @wx: board private structure
+ *
+ * ngbe_request_msix_irqs allocates MSI-X vectors and requests
+ * interrupts from the kernel.
+ **/
+static int ngbe_request_msix_irqs(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int vector, err;
+
+	for (vector = 0; vector < wx->num_q_vectors; vector++) {
+		struct wx_q_vector *q_vector = wx->q_vector[vector];
+		struct msix_entry *entry = &wx->msix_entries[vector];
+
+		if (q_vector->tx.ring && q_vector->rx.ring)
+			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+				 "%s-TxRx-%d", netdev->name, entry->entry);
+		else
+			/* skip this unused q_vector */
+			continue;
+
+		err = request_irq(entry->vector, wx_msix_clean_rings, 0,
+				  q_vector->name, q_vector);
+		if (err) {
+			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
+			       q_vector->name, err);
+			goto free_queue_irqs;
+		}
+	}
+
+	err = request_irq(wx->msix_entries[vector].vector,
+			  ngbe_msix_other, 0, netdev->name, wx);
+
+	if (err) {
+		wx_err(wx, "request_irq for msix_other failed: %d\n", err);
+		goto free_queue_irqs;
+	}
+
+	return 0;
+
+free_queue_irqs:
+	while (vector) {
+		vector--;
+		free_irq(wx->msix_entries[vector].vector,
+			 wx->q_vector[vector]);
+	}
+	wx_reset_interrupt_capability(wx);
+	return err;
+}
+
+/**
+ * ngbe_request_irq - initialize interrupts
+ * @wx: board private structure
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+static int ngbe_request_irq(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	struct pci_dev *pdev = wx->pdev;
+	int err;
+
+	if (pdev->msix_enabled)
+		err = ngbe_request_msix_irqs(wx);
+	else if (pdev->msi_enabled)
+		err = request_irq(pdev->irq, ngbe_intr, 0,
+				  netdev->name, wx);
+	else
+		err = request_irq(pdev->irq, ngbe_intr, IRQF_SHARED,
+				  netdev->name, wx);
+
+	if (err)
+		wx_err(wx, "request_irq failed, Error %d\n", err);
+
+	return err;
+}
+
+static void ngbe_disable_device(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	u32 i;
+
+	/* disable all enabled rx queues */
+	for (i = 0; i < wx->num_rx_queues; i++)
+		/* this call also flushes the previous write */
+		wx_disable_rx_queue(wx, wx->rx_ring[i]);
+	/* disable receives */
+	wx_disable_rx(wx);
+	wx_napi_disable_all(wx);
+	netif_tx_stop_all_queues(netdev);
+	netif_tx_disable(netdev);
+	if (wx->gpio_ctrl)
+		ngbe_sfp_modules_txrx_powerctl(wx, false);
+	wx_irq_disable(wx);
+	/* disable transmits in the hardware now that interrupts are off */
+	for (i = 0; i < wx->num_tx_queues; i++) {
+		u8 reg_idx = wx->tx_ring[i]->reg_idx;
+
+		wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
+	}
+}
+
+static void ngbe_down(struct wx *wx)
+{
+	phy_stop(wx->phydev);
+	ngbe_disable_device(wx);
+	wx_clean_all_tx_rings(wx);
+	wx_clean_all_rx_rings(wx);
+}
+
+static void ngbe_up(struct wx *wx)
+{
+	wx_configure_vectors(wx);
+
+	/* make sure to complete pre-operations */
+	smp_mb__before_atomic();
+	wx_napi_enable_all(wx);
+	/* enable transmits */
+	netif_tx_start_all_queues(wx->netdev);
+
+	/* clear any pending interrupts, may auto mask */
+	rd32(wx, WX_PX_IC);
+	rd32(wx, WX_PX_MISC_IC);
+	ngbe_irq_enable(wx, true);
+	if (wx->gpio_ctrl)
+		ngbe_sfp_modules_txrx_powerctl(wx, true);
+
+	phy_start(wx->phydev);
+}
+
+/**
+ * ngbe_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).
+ **/
+static int ngbe_open(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int err;
+
+	wx_control_hw(wx, true);
+
+	err = wx_setup_resources(wx);
+	if (err)
+		return err;
+
+	wx_configure(wx);
+
+	err = ngbe_request_irq(wx);
+	if (err)
+		goto err_free_resources;
+
+	err = ngbe_phy_connect(wx);
+	if (err)
+		goto err_free_irq;
+
+	err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+	if (err)
+		goto err_dis_phy;
+
+	err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+	if (err)
+		goto err_dis_phy;
+
+	ngbe_up(wx);
+
+	return 0;
+err_dis_phy:
+	phy_disconnect(wx->phydev);
+err_free_irq:
+	wx_free_irq(wx);
+err_free_resources:
+	wx_free_resources(wx);
+	return err;
+}
+
+/**
+ * ngbe_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int ngbe_close(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	ngbe_down(wx);
+	wx_free_irq(wx);
+	wx_free_resources(wx);
+	phy_disconnect(wx->phydev);
+	wx_control_hw(wx, false);
+
+	return 0;
+}
+
+static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	netif_device_detach(netdev);
+
+	rtnl_lock();
+	if (netif_running(netdev))
+		ngbe_down(wx);
+	rtnl_unlock();
+	wx_control_hw(wx, false);
+
+	pci_disable_device(pdev);
+}
+
+static void ngbe_shutdown(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	bool wake;
+
+	wake = !!wx->wol;
+
+	ngbe_dev_shutdown(pdev, &wake);
+
+	if (system_state == SYSTEM_POWER_OFF) {
+		pci_wake_from_d3(pdev, wake);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+}
+
+static const struct net_device_ops ngbe_netdev_ops = {
+	.ndo_open               = ngbe_open,
+	.ndo_stop               = ngbe_close,
+	.ndo_start_xmit         = wx_xmit_frame,
+	.ndo_set_rx_mode        = wx_set_rx_mode,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = wx_set_mac,
+	.ndo_get_stats64        = wx_get_stats64,
+};
+
+/**
+ * ngbe_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ngbe_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * ngbe_probe initializes an wx identified by a pci_dev structure.
+ * The OS initialization, configuring of the wx private structure,
+ * and a hardware reset occur.
+ **/
+static int ngbe_probe(struct pci_dev *pdev,
+		      const struct pci_device_id __always_unused *ent)
+{
+	struct net_device *netdev;
+	u32 e2rom_cksum_cap = 0;
+	struct wx *wx = NULL;
+	static int func_nums;
+	u16 e2rom_ver = 0;
+	u32 etrack_id = 0;
+	u32 saved_ver = 0;
+	int err;
+
+	err = pci_enable_device_mem(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev,
+			"No usable DMA configuration, aborting\n");
+		goto err_pci_disable_dev;
+	}
+
+	err = pci_request_selected_regions(pdev,
+					   pci_select_bars(pdev, IORESOURCE_MEM),
+					   ngbe_driver_name);
+	if (err) {
+		dev_err(&pdev->dev,
+			"pci_request_selected_regions failed %d\n", err);
+		goto err_pci_disable_dev;
+	}
+
+	pci_enable_pcie_error_reporting(pdev);
+	pci_set_master(pdev);
+
+	netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+					 sizeof(struct wx),
+					 NGBE_MAX_TX_QUEUES,
+					 NGBE_MAX_RX_QUEUES);
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_pci_release_regions;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	wx = netdev_priv(netdev);
+	wx->netdev = netdev;
+	wx->pdev = pdev;
+	wx->msg_enable = BIT(3) - 1;
+
+	wx->hw_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 0),
+				   pci_resource_len(pdev, 0));
+	if (!wx->hw_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	wx->driver_name = ngbe_driver_name;
+	ngbe_set_ethtool_ops(netdev);
+	netdev->netdev_ops = &ngbe_netdev_ops;
+
+	netdev->features |= NETIF_F_HIGHDMA;
+	netdev->features = NETIF_F_SG;
+
+	/* copy netdev features into list of user selectable features */
+	netdev->hw_features |= netdev->features |
+			       NETIF_F_RXALL;
+
+	netdev->priv_flags |= IFF_UNICAST_FLT;
+	netdev->priv_flags |= IFF_SUPP_NOFCS;
+
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = NGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
+
+	wx->bd_number = func_nums;
+	/* setup the private structure */
+	err = ngbe_sw_init(wx);
+	if (err)
+		goto err_free_mac_table;
+
+	/* check if flash load is done after hw power up */
+	err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST);
+	if (err)
+		goto err_free_mac_table;
+	err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST);
+	if (err)
+		goto err_free_mac_table;
+
+	err = wx_mng_present(wx);
+	if (err) {
+		dev_err(&pdev->dev, "Management capability is not present\n");
+		goto err_free_mac_table;
+	}
+
+	err = ngbe_reset_hw(wx);
+	if (err) {
+		dev_err(&pdev->dev, "HW Init failed: %d\n", err);
+		goto err_free_mac_table;
+	}
+
+	if (wx->bus.func == 0) {
+		wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0);
+		wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0);
+	} else {
+		e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS);
+		saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG);
+	}
+
+	wx_init_eeprom_params(wx);
+	if (wx->bus.func == 0 || e2rom_cksum_cap == 0) {
+		/* make sure the EEPROM is ready */
+		err = ngbe_eeprom_chksum_hostif(wx);
+		if (err) {
+			dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
+			err = -EIO;
+			goto err_free_mac_table;
+		}
+	}
+
+	wx->wol = 0;
+	if (wx->wol_enabled)
+		wx->wol = NGBE_PSR_WKUP_CTL_MAG;
+
+	wx->wol_enabled = !!(wx->wol);
+	wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol);
+
+	device_set_wakeup_enable(&pdev->dev, wx->wol);
+
+	/* Save off EEPROM version number and Option Rom version which
+	 * together make a unique identify for the eeprom
+	 */
+	if (saved_ver) {
+		etrack_id = saved_ver;
+	} else {
+		wx_read_ee_hostif(wx,
+				  wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H,
+				  &e2rom_ver);
+		etrack_id = e2rom_ver << 16;
+		wx_read_ee_hostif(wx,
+				  wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L,
+				  &e2rom_ver);
+		etrack_id |= e2rom_ver;
+		wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id);
+	}
+	snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+		 "0x%08x", etrack_id);
+
+	eth_hw_addr_set(netdev, wx->mac.perm_addr);
+	wx_mac_set_default_filter(wx, wx->mac.perm_addr);
+
+	err = wx_init_interrupt_scheme(wx);
+	if (err)
+		goto err_free_mac_table;
+
+	/* phy Interface Configuration */
+	err = ngbe_mdio_init(wx);
+	if (err)
+		goto err_clear_interrupt_scheme;
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	pci_set_drvdata(pdev, wx);
+
+	netif_info(wx, probe, netdev,
+		   "PHY: %s, PBA No: Wang Xun GbE Family Controller\n",
+		   wx->mac_type == em_mac_type_mdi ? "Internal" : "External");
+	netif_info(wx, probe, netdev, "%pM\n", netdev->dev_addr);
+
+	return 0;
+
+err_register:
+	wx_control_hw(wx, false);
+err_clear_interrupt_scheme:
+	wx_clear_interrupt_scheme(wx);
+err_free_mac_table:
+	kfree(wx->mac_table);
+err_pci_release_regions:
+	pci_disable_pcie_error_reporting(pdev);
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * ngbe_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * ngbe_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void ngbe_remove(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	unregister_netdev(netdev);
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+
+	kfree(wx->mac_table);
+	wx_clear_interrupt_scheme(wx);
+	pci_disable_pcie_error_reporting(pdev);
+
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver ngbe_driver = {
+	.name     = ngbe_driver_name,
+	.id_table = ngbe_pci_tbl,
+	.probe    = ngbe_probe,
+	.remove   = ngbe_remove,
+	.shutdown = ngbe_shutdown,
+};
+
+module_pci_driver(ngbe_driver);
+
+MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>");
+MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver");
+MODULE_LICENSE("GPL");