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, 593 insertions, 0 deletions

diff --git a/drivers/net/wireless/broadcom/b43/phy_common.c b/drivers/net/wireless/broadcom/b43/phy_common.c
new file mode 100644
index 000000000..285490f6f
--- /dev/null
+++ b/drivers/net/wireless/broadcom/b43/phy_common.c
@@ -0,0 +1,593 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+
+  Broadcom B43 wireless driver
+  Common PHY routines
+
+  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+  Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
+  Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
+  Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
+  Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+
+*/
+
+#include "phy_common.h"
+#include "phy_g.h"
+#include "phy_a.h"
+#include "phy_n.h"
+#include "phy_lp.h"
+#include "phy_ht.h"
+#include "phy_lcn.h"
+#include "phy_ac.h"
+#include "b43.h"
+#include "main.h"
+
+
+int b43_phy_allocate(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &(dev->phy);
+	int err;
+
+	phy->ops = NULL;
+
+	switch (phy->type) {
+	case B43_PHYTYPE_G:
+#ifdef CONFIG_B43_PHY_G
+		phy->ops = &b43_phyops_g;
+#endif
+		break;
+	case B43_PHYTYPE_N:
+#ifdef CONFIG_B43_PHY_N
+		phy->ops = &b43_phyops_n;
+#endif
+		break;
+	case B43_PHYTYPE_LP:
+#ifdef CONFIG_B43_PHY_LP
+		phy->ops = &b43_phyops_lp;
+#endif
+		break;
+	case B43_PHYTYPE_HT:
+#ifdef CONFIG_B43_PHY_HT
+		phy->ops = &b43_phyops_ht;
+#endif
+		break;
+	case B43_PHYTYPE_LCN:
+#ifdef CONFIG_B43_PHY_LCN
+		phy->ops = &b43_phyops_lcn;
+#endif
+		break;
+	case B43_PHYTYPE_AC:
+#ifdef CONFIG_B43_PHY_AC
+		phy->ops = &b43_phyops_ac;
+#endif
+		break;
+	}
+	if (B43_WARN_ON(!phy->ops))
+		return -ENODEV;
+
+	err = phy->ops->allocate(dev);
+	if (err)
+		phy->ops = NULL;
+
+	return err;
+}
+
+void b43_phy_free(struct b43_wldev *dev)
+{
+	dev->phy.ops->free(dev);
+	dev->phy.ops = NULL;
+}
+
+int b43_phy_init(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	const struct b43_phy_operations *ops = phy->ops;
+	int err;
+
+	/* During PHY init we need to use some channel. On the first init this
+	 * function is called *before* b43_op_config, so our pointer is NULL.
+	 */
+	if (!phy->chandef) {
+		phy->chandef = &dev->wl->hw->conf.chandef;
+		phy->channel = phy->chandef->chan->hw_value;
+	}
+
+	phy->ops->switch_analog(dev, true);
+	b43_software_rfkill(dev, false);
+
+	err = ops->init(dev);
+	if (err) {
+		b43err(dev->wl, "PHY init failed\n");
+		goto err_block_rf;
+	}
+	phy->do_full_init = false;
+
+	err = b43_switch_channel(dev, phy->channel);
+	if (err) {
+		b43err(dev->wl, "PHY init: Channel switch to default failed\n");
+		goto err_phy_exit;
+	}
+
+	return 0;
+
+err_phy_exit:
+	phy->do_full_init = true;
+	if (ops->exit)
+		ops->exit(dev);
+err_block_rf:
+	b43_software_rfkill(dev, true);
+
+	return err;
+}
+
+void b43_phy_exit(struct b43_wldev *dev)
+{
+	const struct b43_phy_operations *ops = dev->phy.ops;
+
+	b43_software_rfkill(dev, true);
+	dev->phy.do_full_init = true;
+	if (ops->exit)
+		ops->exit(dev);
+}
+
+bool b43_has_hardware_pctl(struct b43_wldev *dev)
+{
+	if (!dev->phy.hardware_power_control)
+		return false;
+	if (!dev->phy.ops->supports_hwpctl)
+		return false;
+	return dev->phy.ops->supports_hwpctl(dev);
+}
+
+void b43_radio_lock(struct b43_wldev *dev)
+{
+	u32 macctl;
+
+#if B43_DEBUG
+	B43_WARN_ON(dev->phy.radio_locked);
+	dev->phy.radio_locked = true;
+#endif
+
+	macctl = b43_read32(dev, B43_MMIO_MACCTL);
+	macctl |= B43_MACCTL_RADIOLOCK;
+	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	/* Commit the write and wait for the firmware
+	 * to finish any radio register access. */
+	b43_read32(dev, B43_MMIO_MACCTL);
+	udelay(10);
+}
+
+void b43_radio_unlock(struct b43_wldev *dev)
+{
+	u32 macctl;
+
+#if B43_DEBUG
+	B43_WARN_ON(!dev->phy.radio_locked);
+	dev->phy.radio_locked = false;
+#endif
+
+	/* Commit any write */
+	b43_read16(dev, B43_MMIO_PHY_VER);
+	/* unlock */
+	macctl = b43_read32(dev, B43_MMIO_MACCTL);
+	macctl &= ~B43_MACCTL_RADIOLOCK;
+	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+}
+
+void b43_phy_lock(struct b43_wldev *dev)
+{
+#if B43_DEBUG
+	B43_WARN_ON(dev->phy.phy_locked);
+	dev->phy.phy_locked = true;
+#endif
+	B43_WARN_ON(dev->dev->core_rev < 3);
+
+	if (!b43_is_mode(dev->wl, NL80211_IFTYPE_AP))
+		b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
+}
+
+void b43_phy_unlock(struct b43_wldev *dev)
+{
+#if B43_DEBUG
+	B43_WARN_ON(!dev->phy.phy_locked);
+	dev->phy.phy_locked = false;
+#endif
+	B43_WARN_ON(dev->dev->core_rev < 3);
+
+	if (!b43_is_mode(dev->wl, NL80211_IFTYPE_AP))
+		b43_power_saving_ctl_bits(dev, 0);
+}
+
+static inline void assert_mac_suspended(struct b43_wldev *dev)
+{
+	if (!B43_DEBUG)
+		return;
+	if ((b43_status(dev) >= B43_STAT_INITIALIZED) &&
+	    (dev->mac_suspended <= 0)) {
+		b43dbg(dev->wl, "PHY/RADIO register access with "
+		       "enabled MAC.\n");
+		dump_stack();
+	}
+}
+
+u16 b43_radio_read(struct b43_wldev *dev, u16 reg)
+{
+	assert_mac_suspended(dev);
+	dev->phy.writes_counter = 0;
+	return dev->phy.ops->radio_read(dev, reg);
+}
+
+void b43_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	assert_mac_suspended(dev);
+	if (b43_bus_host_is_pci(dev->dev) &&
+	    ++dev->phy.writes_counter > B43_MAX_WRITES_IN_ROW) {
+		b43_read32(dev, B43_MMIO_MACCTL);
+		dev->phy.writes_counter = 1;
+	}
+	dev->phy.ops->radio_write(dev, reg, value);
+}
+
+void b43_radio_mask(struct b43_wldev *dev, u16 offset, u16 mask)
+{
+	b43_radio_write16(dev, offset,
+			  b43_radio_read16(dev, offset) & mask);
+}
+
+void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set)
+{
+	b43_radio_write16(dev, offset,
+			  b43_radio_read16(dev, offset) | set);
+}
+
+void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
+{
+	b43_radio_write16(dev, offset,
+			  (b43_radio_read16(dev, offset) & mask) | set);
+}
+
+bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask,
+			  u16 value, int delay, int timeout)
+{
+	u16 val;
+	int i;
+
+	for (i = 0; i < timeout; i += delay) {
+		val = b43_radio_read(dev, offset);
+		if ((val & mask) == value)
+			return true;
+		udelay(delay);
+	}
+	return false;
+}
+
+u16 b43_phy_read(struct b43_wldev *dev, u16 reg)
+{
+	assert_mac_suspended(dev);
+	dev->phy.writes_counter = 0;
+
+	if (dev->phy.ops->phy_read)
+		return dev->phy.ops->phy_read(dev, reg);
+
+	b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
+	return b43_read16(dev, B43_MMIO_PHY_DATA);
+}
+
+void b43_phy_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	assert_mac_suspended(dev);
+	if (b43_bus_host_is_pci(dev->dev) &&
+	    ++dev->phy.writes_counter > B43_MAX_WRITES_IN_ROW) {
+		b43_read16(dev, B43_MMIO_PHY_VER);
+		dev->phy.writes_counter = 1;
+	}
+
+	if (dev->phy.ops->phy_write)
+		return dev->phy.ops->phy_write(dev, reg, value);
+
+	b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
+	b43_write16(dev, B43_MMIO_PHY_DATA, value);
+}
+
+void b43_phy_copy(struct b43_wldev *dev, u16 destreg, u16 srcreg)
+{
+	b43_phy_write(dev, destreg, b43_phy_read(dev, srcreg));
+}
+
+void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask)
+{
+	if (dev->phy.ops->phy_maskset) {
+		assert_mac_suspended(dev);
+		dev->phy.ops->phy_maskset(dev, offset, mask, 0);
+	} else {
+		b43_phy_write(dev, offset,
+			      b43_phy_read(dev, offset) & mask);
+	}
+}
+
+void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set)
+{
+	if (dev->phy.ops->phy_maskset) {
+		assert_mac_suspended(dev);
+		dev->phy.ops->phy_maskset(dev, offset, 0xFFFF, set);
+	} else {
+		b43_phy_write(dev, offset,
+			      b43_phy_read(dev, offset) | set);
+	}
+}
+
+void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
+{
+	if (dev->phy.ops->phy_maskset) {
+		assert_mac_suspended(dev);
+		dev->phy.ops->phy_maskset(dev, offset, mask, set);
+	} else {
+		b43_phy_write(dev, offset,
+			      (b43_phy_read(dev, offset) & mask) | set);
+	}
+}
+
+void b43_phy_put_into_reset(struct b43_wldev *dev)
+{
+	u32 tmp;
+
+	switch (dev->dev->bus_type) {
+#ifdef CONFIG_B43_BCMA
+	case B43_BUS_BCMA:
+		tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+		tmp &= ~B43_BCMA_IOCTL_GMODE;
+		tmp |= B43_BCMA_IOCTL_PHY_RESET;
+		tmp |= BCMA_IOCTL_FGC;
+		bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+		udelay(1);
+
+		tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+		tmp &= ~BCMA_IOCTL_FGC;
+		bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+		udelay(1);
+		break;
+#endif
+#ifdef CONFIG_B43_SSB
+	case B43_BUS_SSB:
+		tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+		tmp &= ~B43_TMSLOW_GMODE;
+		tmp |= B43_TMSLOW_PHYRESET;
+		tmp |= SSB_TMSLOW_FGC;
+		ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+		usleep_range(1000, 2000);
+
+		tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+		tmp &= ~SSB_TMSLOW_FGC;
+		ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+		usleep_range(1000, 2000);
+
+		break;
+#endif
+	}
+}
+
+void b43_phy_take_out_of_reset(struct b43_wldev *dev)
+{
+	u32 tmp;
+
+	switch (dev->dev->bus_type) {
+#ifdef CONFIG_B43_BCMA
+	case B43_BUS_BCMA:
+		/* Unset reset bit (with forcing clock) */
+		tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+		tmp &= ~B43_BCMA_IOCTL_PHY_RESET;
+		tmp &= ~B43_BCMA_IOCTL_PHY_CLKEN;
+		tmp |= BCMA_IOCTL_FGC;
+		bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+		udelay(1);
+
+		/* Do not force clock anymore */
+		tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+		tmp &= ~BCMA_IOCTL_FGC;
+		tmp |= B43_BCMA_IOCTL_PHY_CLKEN;
+		bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+		udelay(1);
+		break;
+#endif
+#ifdef CONFIG_B43_SSB
+	case B43_BUS_SSB:
+		/* Unset reset bit (with forcing clock) */
+		tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+		tmp &= ~B43_TMSLOW_PHYRESET;
+		tmp &= ~B43_TMSLOW_PHYCLKEN;
+		tmp |= SSB_TMSLOW_FGC;
+		ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+		ssb_read32(dev->dev->sdev, SSB_TMSLOW); /* flush */
+		usleep_range(1000, 2000);
+
+		tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+		tmp &= ~SSB_TMSLOW_FGC;
+		tmp |= B43_TMSLOW_PHYCLKEN;
+		ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+		ssb_read32(dev->dev->sdev, SSB_TMSLOW); /* flush */
+		usleep_range(1000, 2000);
+		break;
+#endif
+	}
+}
+
+int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel)
+{
+	struct b43_phy *phy = &(dev->phy);
+	u16 channelcookie, savedcookie;
+	int err;
+
+	/* First we set the channel radio code to prevent the
+	 * firmware from sending ghost packets.
+	 */
+	channelcookie = new_channel;
+	if (b43_current_band(dev->wl) == NL80211_BAND_5GHZ)
+		channelcookie |= B43_SHM_SH_CHAN_5GHZ;
+	/* FIXME: set 40Mhz flag if required */
+	if (0)
+		channelcookie |= B43_SHM_SH_CHAN_40MHZ;
+	savedcookie = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN);
+	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN, channelcookie);
+
+	/* Now try to switch the PHY hardware channel. */
+	err = phy->ops->switch_channel(dev, new_channel);
+	if (err)
+		goto err_restore_cookie;
+
+	/* Wait for the radio to tune to the channel and stabilize. */
+	msleep(8);
+
+	return 0;
+
+err_restore_cookie:
+	b43_shm_write16(dev, B43_SHM_SHARED,
+			B43_SHM_SH_CHAN, savedcookie);
+
+	return err;
+}
+
+void b43_software_rfkill(struct b43_wldev *dev, bool blocked)
+{
+	struct b43_phy *phy = &dev->phy;
+
+	b43_mac_suspend(dev);
+	phy->ops->software_rfkill(dev, blocked);
+	phy->radio_on = !blocked;
+	b43_mac_enable(dev);
+}
+
+/*
+ * b43_phy_txpower_adjust_work - TX power workqueue.
+ *
+ * Workqueue for updating the TX power parameters in hardware.
+ */
+void b43_phy_txpower_adjust_work(struct work_struct *work)
+{
+	struct b43_wl *wl = container_of(work, struct b43_wl,
+					 txpower_adjust_work);
+	struct b43_wldev *dev;
+
+	mutex_lock(&wl->mutex);
+	dev = wl->current_dev;
+
+	if (likely(dev && (b43_status(dev) >= B43_STAT_STARTED)))
+		dev->phy.ops->adjust_txpower(dev);
+
+	mutex_unlock(&wl->mutex);
+}
+
+void b43_phy_txpower_check(struct b43_wldev *dev, unsigned int flags)
+{
+	struct b43_phy *phy = &dev->phy;
+	unsigned long now = jiffies;
+	enum b43_txpwr_result result;
+
+	if (!(flags & B43_TXPWR_IGNORE_TIME)) {
+		/* Check if it's time for a TXpower check. */
+		if (time_before(now, phy->next_txpwr_check_time))
+			return; /* Not yet */
+	}
+	/* The next check will be needed in two seconds, or later. */
+	phy->next_txpwr_check_time = round_jiffies(now + (HZ * 2));
+
+	if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
+	    (dev->dev->board_type == SSB_BOARD_BU4306))
+		return; /* No software txpower adjustment needed */
+
+	result = phy->ops->recalc_txpower(dev, !!(flags & B43_TXPWR_IGNORE_TSSI));
+	if (result == B43_TXPWR_RES_DONE)
+		return; /* We are done. */
+	B43_WARN_ON(result != B43_TXPWR_RES_NEED_ADJUST);
+	B43_WARN_ON(phy->ops->adjust_txpower == NULL);
+
+	/* We must adjust the transmission power in hardware.
+	 * Schedule b43_phy_txpower_adjust_work(). */
+	ieee80211_queue_work(dev->wl->hw, &dev->wl->txpower_adjust_work);
+}
+
+int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset)
+{
+	const bool is_ofdm = (shm_offset != B43_SHM_SH_TSSI_CCK);
+	unsigned int a, b, c, d;
+	unsigned int average;
+	u32 tmp;
+
+	tmp = b43_shm_read32(dev, B43_SHM_SHARED, shm_offset);
+	a = tmp & 0xFF;
+	b = (tmp >> 8) & 0xFF;
+	c = (tmp >> 16) & 0xFF;
+	d = (tmp >> 24) & 0xFF;
+	if (a == 0 || a == B43_TSSI_MAX ||
+	    b == 0 || b == B43_TSSI_MAX ||
+	    c == 0 || c == B43_TSSI_MAX ||
+	    d == 0 || d == B43_TSSI_MAX)
+		return -ENOENT;
+	/* The values are OK. Clear them. */
+	tmp = B43_TSSI_MAX | (B43_TSSI_MAX << 8) |
+	      (B43_TSSI_MAX << 16) | (B43_TSSI_MAX << 24);
+	b43_shm_write32(dev, B43_SHM_SHARED, shm_offset, tmp);
+
+	if (is_ofdm) {
+		a = (a + 32) & 0x3F;
+		b = (b + 32) & 0x3F;
+		c = (c + 32) & 0x3F;
+		d = (d + 32) & 0x3F;
+	}
+
+	/* Get the average of the values with 0.5 added to each value. */
+	average = (a + b + c + d + 2) / 4;
+	if (is_ofdm) {
+		/* Adjust for CCK-boost */
+		if (b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1)
+		    & B43_HF_CCKBOOST)
+			average = (average >= 13) ? (average - 13) : 0;
+	}
+
+	return average;
+}
+
+void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on)
+{
+	b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
+}
+
+
+bool b43_is_40mhz(struct b43_wldev *dev)
+{
+	return dev->phy.chandef->width == NL80211_CHAN_WIDTH_40;
+}
+
+/* https://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */
+void b43_phy_force_clock(struct b43_wldev *dev, bool force)
+{
+	u32 tmp;
+
+	WARN_ON(dev->phy.type != B43_PHYTYPE_N &&
+		dev->phy.type != B43_PHYTYPE_HT &&
+		dev->phy.type != B43_PHYTYPE_AC);
+
+	switch (dev->dev->bus_type) {
+#ifdef CONFIG_B43_BCMA
+	case B43_BUS_BCMA:
+		tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+		if (force)
+			tmp |= BCMA_IOCTL_FGC;
+		else
+			tmp &= ~BCMA_IOCTL_FGC;
+		bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+		break;
+#endif
+#ifdef CONFIG_B43_SSB
+	case B43_BUS_SSB:
+		tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+		if (force)
+			tmp |= SSB_TMSLOW_FGC;
+		else
+			tmp &= ~SSB_TMSLOW_FGC;
+		ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+		break;
+#endif
+	}
+}