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, 851 insertions, 0 deletions

diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c
new file mode 100644
index 000000000..b4ebc7d31
--- /dev/null
+++ b/drivers/staging/vt6655/mac.c
@@ -0,0 +1,851 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * Purpose:  MAC routines
+ *
+ * Author: Tevin Chen
+ *
+ * Date: May 21, 1996
+ *
+ * Functions:
+ *      vt6655_mac_is_reg_bits_off - Test if All test Bits Off
+ *      vt6655_mac_set_short_retry_limit - Set 802.11 Short Retry limit
+ *      MACvSetLongRetryLimit - Set 802.11 Long Retry limit
+ *      vt6655_mac_set_loopback_mode - Set MAC Loopback Mode
+ *      vt6655_mac_save_context - Save Context of MAC Registers
+ *      vt6655_mac_restore_context - Restore Context of MAC Registers
+ *      MACbSoftwareReset - Software Reset MAC
+ *      vt6655_mac_safe_rx_off - Turn Off MAC Rx
+ *      vt6655_mac_safe_tx_off - Turn Off MAC Tx
+ *      vt6655_mac_safe_stop - Stop MAC function
+ *      MACbShutdown - Shut down MAC
+ *      MACvInitialize - Initialize MAC
+ *      MACvSetCurrRxDescAddr - Set Rx Descriptors Address
+ *      MACvSetCurrTx0DescAddr - Set Tx0 Descriptors Address
+ *      MACvSetCurrTx1DescAddr - Set Tx1 Descriptors Address
+ *      MACvTimer0MicroSDelay - Micro Second Delay Loop by MAC
+ *
+ * Revision History:
+ *      08-22-2003 Kyle Hsu     :  Porting MAC functions from sim53
+ *      09-03-2003 Bryan YC Fan :  Add MACvClearBusSusInd()&
+ *				   MACvEnableBusSusEn()
+ *      09-18-2003 Jerry Chen   :  Add MACvSetKeyEntry & MACvDisableKeyEntry
+ *
+ */
+
+#include "mac.h"
+
+void vt6655_mac_reg_bits_on(void __iomem *iobase, const u8 reg_offset, const u8 bit_mask)
+{
+	unsigned char reg_value;
+
+	reg_value = ioread8(iobase + reg_offset);
+	iowrite8(reg_value | bit_mask, iobase + reg_offset);
+}
+
+void vt6655_mac_word_reg_bits_on(void __iomem *iobase, const u8 reg_offset, const u16 bit_mask)
+{
+	unsigned short reg_value;
+
+	reg_value = ioread16(iobase + reg_offset);
+	iowrite16(reg_value | (bit_mask), iobase + reg_offset);
+}
+
+void vt6655_mac_reg_bits_off(void __iomem *iobase, const u8 reg_offset, const u8 bit_mask)
+{
+	unsigned char reg_value;
+
+	reg_value = ioread8(iobase + reg_offset);
+	iowrite8(reg_value & ~(bit_mask), iobase + reg_offset);
+}
+
+void vt6655_mac_word_reg_bits_off(void __iomem *iobase, const u8 reg_offset, const u16 bit_mask)
+{
+	unsigned short reg_value;
+
+	reg_value = ioread16(iobase + reg_offset);
+	iowrite16(reg_value & ~(bit_mask), iobase + reg_offset);
+}
+
+static void vt6655_mac_clear_stck_ds(void __iomem *iobase)
+{
+	u8 reg_value;
+
+	reg_value = ioread8(iobase + MAC_REG_STICKHW);
+	reg_value = reg_value & 0xFC;
+	iowrite8(reg_value, iobase + MAC_REG_STICKHW);
+}
+
+/*
+ * Description:
+ *      Test if all test bits off
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      reg_offset - Offset of MAC Register
+ *      mask       - Test bits
+ *  Out:
+ *      none
+ *
+ * Return Value: true if all test bits Off; otherwise false
+ *
+ */
+static bool vt6655_mac_is_reg_bits_off(struct vnt_private *priv,
+				       unsigned char reg_offset,
+				       unsigned char mask)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	return !(ioread8(io_base + reg_offset) & mask);
+}
+
+/*
+ * Description:
+ *      Set 802.11 Short Retry Limit
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      retry_limit - Retry Limit
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void vt6655_mac_set_short_retry_limit(struct vnt_private *priv, unsigned char retry_limit)
+{
+	void __iomem *io_base = priv->port_offset;
+	/* set SRT */
+	iowrite8(retry_limit, io_base + MAC_REG_SRT);
+}
+
+/*
+ * Description:
+ *      Set 802.11 Long Retry Limit
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      byRetryLimit- Retry Limit
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void MACvSetLongRetryLimit(struct vnt_private *priv,
+			   unsigned char byRetryLimit)
+{
+	void __iomem *io_base = priv->port_offset;
+	/* set LRT */
+	iowrite8(byRetryLimit, io_base + MAC_REG_LRT);
+}
+
+/*
+ * Description:
+ *      Set MAC Loopback mode
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *      loopback_mode  - Loopback Mode
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+static void vt6655_mac_set_loopback_mode(struct vnt_private *priv, u8 loopback_mode)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	loopback_mode <<= 6;
+	/* set TCR */
+	iowrite8((ioread8(io_base + MAC_REG_TEST) & 0x3f) | loopback_mode, io_base + MAC_REG_TEST);
+}
+
+/*
+ * Description:
+ *      Save MAC registers to context buffer
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      cxt_buf   - Context buffer
+ *
+ * Return Value: none
+ *
+ */
+static void vt6655_mac_save_context(struct vnt_private *priv, u8 *cxt_buf)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	/* read page0 register */
+	memcpy_fromio(cxt_buf, io_base, MAC_MAX_CONTEXT_SIZE_PAGE0);
+
+	VT6655_MAC_SELECT_PAGE1(io_base);
+
+	/* read page1 register */
+	memcpy_fromio(cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0, io_base,
+		      MAC_MAX_CONTEXT_SIZE_PAGE1);
+
+	VT6655_MAC_SELECT_PAGE0(io_base);
+}
+
+/*
+ * Description:
+ *      Restore MAC registers from context buffer
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      cxt_buf   - Context buffer
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+static void vt6655_mac_restore_context(struct vnt_private *priv, u8 *cxt_buf)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	VT6655_MAC_SELECT_PAGE1(io_base);
+	/* restore page1 */
+	memcpy_toio(io_base, cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0,
+		    MAC_MAX_CONTEXT_SIZE_PAGE1);
+
+	VT6655_MAC_SELECT_PAGE0(io_base);
+
+	/* restore RCR,TCR,IMR... */
+	memcpy_toio(io_base + MAC_REG_RCR, cxt_buf + MAC_REG_RCR,
+		    MAC_REG_ISR - MAC_REG_RCR);
+
+	/* restore MAC Config. */
+	memcpy_toio(io_base + MAC_REG_LRT, cxt_buf + MAC_REG_LRT,
+		    MAC_REG_PAGE1SEL - MAC_REG_LRT);
+
+	iowrite8(*(cxt_buf + MAC_REG_CFG), io_base + MAC_REG_CFG);
+
+	/* restore PS Config. */
+	memcpy_toio(io_base + MAC_REG_PSCFG, cxt_buf + MAC_REG_PSCFG,
+		    MAC_REG_BBREGCTL - MAC_REG_PSCFG);
+
+	/* restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR */
+	iowrite32(*(u32 *)(cxt_buf + MAC_REG_TXDMAPTR0),
+		  io_base + MAC_REG_TXDMAPTR0);
+	iowrite32(*(u32 *)(cxt_buf + MAC_REG_AC0DMAPTR),
+		  io_base + MAC_REG_AC0DMAPTR);
+	iowrite32(*(u32 *)(cxt_buf + MAC_REG_BCNDMAPTR),
+		  io_base + MAC_REG_BCNDMAPTR);
+	iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR0),
+		  io_base + MAC_REG_RXDMAPTR0);
+	iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR1),
+		  io_base + MAC_REG_RXDMAPTR1);
+}
+
+/*
+ * Description:
+ *      Software Reset MAC
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if Reset Success; otherwise false
+ *
+ */
+bool MACbSoftwareReset(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+
+	/* turn on HOSTCR_SOFTRST, just write 0x01 to reset */
+	iowrite8(0x01, io_base + MAC_REG_HOSTCR);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_SOFTRST))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT)
+		return false;
+	return true;
+}
+
+/*
+ * Description:
+ *      save some important register's value, then do reset, then restore
+ *	register's value
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if success; otherwise false
+ *
+ */
+static void vt6655_mac_save_soft_reset(struct vnt_private *priv)
+{
+	u8 tmp_reg_data[MAC_MAX_CONTEXT_SIZE_PAGE0 + MAC_MAX_CONTEXT_SIZE_PAGE1];
+
+	/* PATCH....
+	 * save some important register's value, then do
+	 * reset, then restore register's value
+	 */
+	/* save MAC context */
+	vt6655_mac_save_context(priv, tmp_reg_data);
+	/* do reset */
+	MACbSoftwareReset(priv);
+	/* restore MAC context, except CR0 */
+	vt6655_mac_restore_context(priv, tmp_reg_data);
+}
+
+/*
+ * Description:
+ *      Turn Off MAC Rx
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if success; otherwise false
+ *
+ */
+static bool vt6655_mac_safe_rx_off(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+
+	/* turn off wow temp for turn off Rx safely */
+
+	/* Clear RX DMA0,1 */
+	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL0);
+	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL1);
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread32(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x10)\n");
+		return false;
+	}
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread32(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x11)\n");
+		return false;
+	}
+
+	/* try to safe shutdown RX */
+	vt6655_mac_reg_bits_off(io_base, MAC_REG_HOSTCR, HOSTCR_RXON);
+	/* W_MAX_TIMEOUT is the timeout period */
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_RXONST))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x12)\n");
+		return false;
+	}
+	return true;
+}
+
+/*
+ * Description:
+ *      Turn Off MAC Tx
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if success; otherwise false
+ *
+ */
+static bool vt6655_mac_safe_tx_off(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+
+	/* Clear TX DMA */
+	/* Tx0 */
+	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_TXDMACTL0);
+	/* AC0 */
+	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_AC0DMACTL);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread32(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x20)\n");
+		return false;
+	}
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread32(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x21)\n");
+		return false;
+	}
+
+	/* try to safe shutdown TX */
+	vt6655_mac_reg_bits_off(io_base, MAC_REG_HOSTCR, HOSTCR_TXON);
+
+	/* W_MAX_TIMEOUT is the timeout period */
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_TXONST))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x24)\n");
+		return false;
+	}
+	return true;
+}
+
+/*
+ * Description:
+ *      Stop MAC function
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if success; otherwise false
+ *
+ */
+static bool vt6655_mac_safe_stop(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	vt6655_mac_reg_bits_off(io_base, MAC_REG_TCR, TCR_AUTOBCNTX);
+
+	if (!vt6655_mac_safe_rx_off(priv)) {
+		pr_debug(" vt6655_mac_safe_rx_off == false)\n");
+		vt6655_mac_save_soft_reset(priv);
+		return false;
+	}
+	if (!vt6655_mac_safe_tx_off(priv)) {
+		pr_debug(" vt6655_mac_safe_tx_off == false)\n");
+		vt6655_mac_save_soft_reset(priv);
+		return false;
+	}
+
+	vt6655_mac_reg_bits_off(io_base, MAC_REG_HOSTCR, HOSTCR_MACEN);
+
+	return true;
+}
+
+/*
+ * Description:
+ *      Shut Down MAC
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: true if success; otherwise false
+ *
+ */
+bool MACbShutdown(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	/* disable MAC IMR */
+	iowrite32(0, io_base + MAC_REG_IMR);
+	vt6655_mac_set_loopback_mode(priv, MAC_LB_INTERNAL);
+	/* stop the adapter */
+	if (!vt6655_mac_safe_stop(priv)) {
+		vt6655_mac_set_loopback_mode(priv, MAC_LB_NONE);
+		return false;
+	}
+	vt6655_mac_set_loopback_mode(priv, MAC_LB_NONE);
+	return true;
+}
+
+/*
+ * Description:
+ *      Initialize MAC
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void MACvInitialize(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	/* clear sticky bits */
+	vt6655_mac_clear_stck_ds(io_base);
+	/* disable force PME-enable */
+	iowrite8(PME_OVR, io_base + MAC_REG_PMC1);
+	/* only 3253 A */
+
+	/* do reset */
+	MACbSoftwareReset(priv);
+
+	/* reset TSF counter */
+	iowrite8(TFTCTL_TSFCNTRST, io_base + MAC_REG_TFTCTL);
+	/* enable TSF counter */
+	iowrite8(TFTCTL_TSFCNTREN, io_base + MAC_REG_TFTCTL);
+}
+
+/*
+ * Description:
+ *      Set the chip with current rx descriptor address
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *      curr_desc_addr  - Descriptor Address
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void vt6655_mac_set_curr_rx_0_desc_addr(struct vnt_private *priv, u32 curr_desc_addr)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+	unsigned char org_dma_ctl;
+
+	org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL0);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0 + 2);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
+			break;
+	}
+
+	iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR0);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0);
+}
+
+/*
+ * Description:
+ *      Set the chip with current rx descriptor address
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *      curr_desc_addr  - Descriptor Address
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void vt6655_mac_set_curr_rx_1_desc_addr(struct vnt_private *priv, u32 curr_desc_addr)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+	unsigned char org_dma_ctl;
+
+	org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL1);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1 + 2);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
+			break;
+	}
+
+	iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR1);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1);
+}
+
+/*
+ * Description:
+ *      Set the chip with current tx0 descriptor address
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *      curr_desc_addr  - Descriptor Address
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+static void vt6655_mac_set_curr_tx_0_desc_addr_ex(struct vnt_private *priv, u32 curr_desc_addr)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+	unsigned char org_dma_ctl;
+
+	org_dma_ctl = ioread8(io_base + MAC_REG_TXDMACTL0);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0 + 2);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
+			break;
+	}
+
+	iowrite32(curr_desc_addr, io_base + MAC_REG_TXDMAPTR0);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0);
+}
+
+/*
+ * Description:
+ *      Set the chip with current AC0 descriptor address
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *      curr_desc_addr  - Descriptor Address
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+/* TxDMA1 = AC0DMA */
+static void vt6655_mac_set_curr_ac_0_desc_addr_ex(struct vnt_private *priv, u32 curr_desc_addr)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short ww;
+	unsigned char org_dma_ctl;
+
+	org_dma_ctl = ioread8(io_base + MAC_REG_AC0DMACTL);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL + 2);
+
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (!(ioread8(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT)
+		pr_debug(" DBG_PORT80(0x26)\n");
+	iowrite32(curr_desc_addr, io_base + MAC_REG_AC0DMAPTR);
+	if (org_dma_ctl & DMACTL_RUN)
+		iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL);
+}
+
+void vt6655_mac_set_curr_tx_desc_addr(int tx_type, struct vnt_private *priv, u32 curr_desc_addr)
+{
+	if (tx_type == TYPE_AC0DMA)
+		vt6655_mac_set_curr_ac_0_desc_addr_ex(priv, curr_desc_addr);
+	else if (tx_type == TYPE_TXDMA0)
+		vt6655_mac_set_curr_tx_0_desc_addr_ex(priv, curr_desc_addr);
+}
+
+/*
+ * Description:
+ *      Micro Second Delay via MAC
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      uDelay      - Delay time (timer resolution is 4 us)
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void MACvTimer0MicroSDelay(struct vnt_private *priv, unsigned int uDelay)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned char byValue;
+	unsigned int uu, ii;
+
+	iowrite8(0, io_base + MAC_REG_TMCTL0);
+	iowrite32(uDelay, io_base + MAC_REG_TMDATA0);
+	iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL0);
+	for (ii = 0; ii < 66; ii++) {  /* assume max PCI clock is 66Mhz */
+		for (uu = 0; uu < uDelay; uu++) {
+			byValue = ioread8(io_base + MAC_REG_TMCTL0);
+			if ((byValue == 0) ||
+			    (byValue & TMCTL_TSUSP)) {
+				iowrite8(0, io_base + MAC_REG_TMCTL0);
+				return;
+			}
+		}
+	}
+	iowrite8(0, io_base + MAC_REG_TMCTL0);
+}
+
+/*
+ * Description:
+ *      Micro Second One shot timer via MAC
+ *
+ * Parameters:
+ *  In:
+ *      io_base    - Base Address for MAC
+ *      uDelay      - Delay time
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void MACvOneShotTimer1MicroSec(struct vnt_private *priv,
+			       unsigned int uDelayTime)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	iowrite8(0, io_base + MAC_REG_TMCTL1);
+	iowrite32(uDelayTime, io_base + MAC_REG_TMDATA1);
+	iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL1);
+}
+
+void MACvSetMISCFifo(struct vnt_private *priv, unsigned short offset,
+		     u32 data)
+{
+	void __iomem *io_base = priv->port_offset;
+
+	if (offset > 273)
+		return;
+	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
+	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
+	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
+}
+
+bool MACbPSWakeup(struct vnt_private *priv)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned int ww;
+	/* Read PSCTL */
+	if (vt6655_mac_is_reg_bits_off(priv, MAC_REG_PSCTL, PSCTL_PS))
+		return true;
+
+	/* Disable PS */
+	vt6655_mac_reg_bits_off(io_base, MAC_REG_PSCTL, PSCTL_PSEN);
+
+	/* Check if SyncFlushOK */
+	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
+		if (ioread8(io_base + MAC_REG_PSCTL) & PSCTL_WAKEDONE)
+			break;
+	}
+	if (ww == W_MAX_TIMEOUT) {
+		pr_debug(" DBG_PORT80(0x33)\n");
+		return false;
+	}
+	return true;
+}
+
+/*
+ * Description:
+ *      Set the Key by MISCFIFO
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+
+void MACvSetKeyEntry(struct vnt_private *priv, unsigned short wKeyCtl,
+		     unsigned int uEntryIdx, unsigned int uKeyIdx,
+		     unsigned char *pbyAddr, u32 *pdwKey,
+		     unsigned char local_id)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short offset;
+	u32 data;
+	int     ii;
+
+	if (local_id <= 1)
+		return;
+
+	offset = MISCFIFO_KEYETRY0;
+	offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);
+
+	data = 0;
+	data |= wKeyCtl;
+	data <<= 16;
+	data |= MAKEWORD(*(pbyAddr + 4), *(pbyAddr + 5));
+	pr_debug("1. offset: %d, Data: %X, KeyCtl:%X\n",
+		 offset, data, wKeyCtl);
+
+	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
+	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
+	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
+	offset++;
+
+	data = 0;
+	data |= *(pbyAddr + 3);
+	data <<= 8;
+	data |= *(pbyAddr + 2);
+	data <<= 8;
+	data |= *(pbyAddr + 1);
+	data <<= 8;
+	data |= *pbyAddr;
+	pr_debug("2. offset: %d, Data: %X\n", offset, data);
+
+	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
+	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
+	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
+	offset++;
+
+	offset += (uKeyIdx * 4);
+	for (ii = 0; ii < 4; ii++) {
+		/* always push 128 bits */
+		pr_debug("3.(%d) offset: %d, Data: %X\n",
+			 ii, offset + ii, *pdwKey);
+		iowrite16(offset + ii, io_base + MAC_REG_MISCFFNDEX);
+		iowrite32(*pdwKey++, io_base + MAC_REG_MISCFFDATA);
+		iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
+	}
+}
+
+/*
+ * Description:
+ *      Disable the Key Entry by MISCFIFO
+ *
+ * Parameters:
+ *  In:
+ *      io_base        - Base Address for MAC
+ *
+ *  Out:
+ *      none
+ *
+ * Return Value: none
+ *
+ */
+void MACvDisableKeyEntry(struct vnt_private *priv, unsigned int uEntryIdx)
+{
+	void __iomem *io_base = priv->port_offset;
+	unsigned short offset;
+
+	offset = MISCFIFO_KEYETRY0;
+	offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);
+
+	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
+	iowrite32(0, io_base + MAC_REG_MISCFFDATA);
+	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
+}