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, 728 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/libertas_tf/main.c b/drivers/net/wireless/marvell/libertas_tf/main.c
new file mode 100644
index 000000000..199d33ed3
--- /dev/null
+++ b/drivers/net/wireless/marvell/libertas_tf/main.c
@@ -0,0 +1,728 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (C) 2008, cozybit Inc.
+ *  Copyright (C) 2003-2006, Marvell International Ltd.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/hardirq.h>
+#include <linux/slab.h>
+
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include "libertas_tf.h"
+
+/* thinfirm version: 5.132.X.pX */
+#define LBTF_FW_VER_MIN		0x05840300
+#define LBTF_FW_VER_MAX		0x0584ffff
+
+/* Module parameters */
+unsigned int lbtf_debug;
+EXPORT_SYMBOL_GPL(lbtf_debug);
+module_param_named(libertas_tf_debug, lbtf_debug, int, 0644);
+
+struct workqueue_struct *lbtf_wq;
+
+static const struct ieee80211_channel lbtf_channels[] = {
+	{ .center_freq = 2412, .hw_value = 1 },
+	{ .center_freq = 2417, .hw_value = 2 },
+	{ .center_freq = 2422, .hw_value = 3 },
+	{ .center_freq = 2427, .hw_value = 4 },
+	{ .center_freq = 2432, .hw_value = 5 },
+	{ .center_freq = 2437, .hw_value = 6 },
+	{ .center_freq = 2442, .hw_value = 7 },
+	{ .center_freq = 2447, .hw_value = 8 },
+	{ .center_freq = 2452, .hw_value = 9 },
+	{ .center_freq = 2457, .hw_value = 10 },
+	{ .center_freq = 2462, .hw_value = 11 },
+	{ .center_freq = 2467, .hw_value = 12 },
+	{ .center_freq = 2472, .hw_value = 13 },
+	{ .center_freq = 2484, .hw_value = 14 },
+};
+
+/* This table contains the hardware specific values for the modulation rates. */
+static const struct ieee80211_rate lbtf_rates[] = {
+	{ .bitrate = 10,
+	  .hw_value = 0, },
+	{ .bitrate = 20,
+	  .hw_value = 1,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 55,
+	  .hw_value = 2,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 110,
+	  .hw_value = 3,
+	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+	{ .bitrate = 60,
+	  .hw_value = 5,
+	  .flags = 0 },
+	{ .bitrate = 90,
+	  .hw_value = 6,
+	  .flags = 0 },
+	{ .bitrate = 120,
+	  .hw_value = 7,
+	  .flags = 0 },
+	{ .bitrate = 180,
+	  .hw_value = 8,
+	  .flags = 0 },
+	{ .bitrate = 240,
+	  .hw_value = 9,
+	  .flags = 0 },
+	{ .bitrate = 360,
+	  .hw_value = 10,
+	  .flags = 0 },
+	{ .bitrate = 480,
+	  .hw_value = 11,
+	  .flags = 0 },
+	{ .bitrate = 540,
+	  .hw_value = 12,
+	  .flags = 0 },
+};
+
+static void lbtf_cmd_work(struct work_struct *work)
+{
+	struct lbtf_private *priv = container_of(work, struct lbtf_private,
+					 cmd_work);
+
+	lbtf_deb_enter(LBTF_DEB_CMD);
+
+	spin_lock_irq(&priv->driver_lock);
+	/* command response? */
+	if (priv->cmd_response_rxed) {
+		priv->cmd_response_rxed = 0;
+		spin_unlock_irq(&priv->driver_lock);
+		lbtf_process_rx_command(priv);
+		spin_lock_irq(&priv->driver_lock);
+	}
+
+	if (priv->cmd_timed_out && priv->cur_cmd) {
+		struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
+
+		if (++priv->nr_retries > 10) {
+			lbtf_complete_command(priv, cmdnode,
+					      -ETIMEDOUT);
+			priv->nr_retries = 0;
+		} else {
+			priv->cur_cmd = NULL;
+
+			/* Stick it back at the _top_ of the pending
+			 * queue for immediate resubmission */
+			list_add(&cmdnode->list, &priv->cmdpendingq);
+		}
+	}
+	priv->cmd_timed_out = 0;
+	spin_unlock_irq(&priv->driver_lock);
+
+	/* Execute the next command */
+	if (!priv->cur_cmd)
+		lbtf_execute_next_command(priv);
+
+	lbtf_deb_leave(LBTF_DEB_CMD);
+}
+
+/*
+ *  This function handles the timeout of command sending.
+ *  It will re-send the same command again.
+ */
+static void command_timer_fn(struct timer_list *t)
+{
+	struct lbtf_private *priv = from_timer(priv, t, command_timer);
+	unsigned long flags;
+	lbtf_deb_enter(LBTF_DEB_CMD);
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	if (!priv->cur_cmd) {
+		printk(KERN_DEBUG "libertastf: command timer expired; "
+				  "no pending command\n");
+		goto out;
+	}
+
+	printk(KERN_DEBUG "libertas: command %x timed out\n",
+		le16_to_cpu(priv->cur_cmd->cmdbuf->command));
+
+	priv->cmd_timed_out = 1;
+	queue_work(lbtf_wq, &priv->cmd_work);
+out:
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	lbtf_deb_leave(LBTF_DEB_CMD);
+}
+
+static int lbtf_init_adapter(struct lbtf_private *priv)
+{
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+	eth_broadcast_addr(priv->current_addr);
+	mutex_init(&priv->lock);
+
+	priv->vif = NULL;
+	timer_setup(&priv->command_timer, command_timer_fn, 0);
+
+	INIT_LIST_HEAD(&priv->cmdfreeq);
+	INIT_LIST_HEAD(&priv->cmdpendingq);
+
+	spin_lock_init(&priv->driver_lock);
+
+	/* Allocate the command buffers */
+	if (lbtf_allocate_cmd_buffer(priv))
+		return -1;
+
+	lbtf_deb_leave(LBTF_DEB_MAIN);
+	return 0;
+}
+
+static void lbtf_free_adapter(struct lbtf_private *priv)
+{
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+	lbtf_free_cmd_buffer(priv);
+	del_timer(&priv->command_timer);
+	lbtf_deb_leave(LBTF_DEB_MAIN);
+}
+
+static void lbtf_op_tx(struct ieee80211_hw *hw,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
+{
+	struct lbtf_private *priv = hw->priv;
+
+	priv->skb_to_tx = skb;
+	queue_work(lbtf_wq, &priv->tx_work);
+	/*
+	 * queue will be restarted when we receive transmission feedback if
+	 * there are no buffered multicast frames to send
+	 */
+	ieee80211_stop_queues(priv->hw);
+}
+
+static void lbtf_tx_work(struct work_struct *work)
+{
+	struct lbtf_private *priv = container_of(work, struct lbtf_private,
+					 tx_work);
+	unsigned int len;
+	struct ieee80211_tx_info *info;
+	struct txpd *txpd;
+	struct sk_buff *skb = NULL;
+	int err;
+
+	lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX);
+
+	if ((priv->vif->type == NL80211_IFTYPE_AP) &&
+	    (!skb_queue_empty(&priv->bc_ps_buf)))
+		skb = skb_dequeue(&priv->bc_ps_buf);
+	else if (priv->skb_to_tx) {
+		skb = priv->skb_to_tx;
+		priv->skb_to_tx = NULL;
+	} else {
+		lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
+		return;
+	}
+
+	len = skb->len;
+	info  = IEEE80211_SKB_CB(skb);
+	txpd = skb_push(skb, sizeof(struct txpd));
+
+	if (priv->surpriseremoved) {
+		dev_kfree_skb_any(skb);
+		lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
+		return;
+	}
+
+	memset(txpd, 0, sizeof(struct txpd));
+	/* Activate per-packet rate selection */
+	txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE |
+			     ieee80211_get_tx_rate(priv->hw, info)->hw_value);
+
+	/* copy destination address from 802.11 header */
+	BUILD_BUG_ON(sizeof(txpd->tx_dest_addr) != ETH_ALEN);
+	memcpy(&txpd->tx_dest_addr, skb->data + sizeof(struct txpd) + 4,
+		ETH_ALEN);
+	txpd->tx_packet_length = cpu_to_le16(len);
+	txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
+	lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
+	BUG_ON(priv->tx_skb);
+	spin_lock_irq(&priv->driver_lock);
+	priv->tx_skb = skb;
+	err = priv->ops->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len);
+	spin_unlock_irq(&priv->driver_lock);
+	if (err) {
+		dev_kfree_skb_any(skb);
+		priv->tx_skb = NULL;
+		pr_err("TX error: %d", err);
+	}
+	lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
+}
+
+static int lbtf_op_start(struct ieee80211_hw *hw)
+{
+	struct lbtf_private *priv = hw->priv;
+
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
+	priv->radioon = RADIO_ON;
+	priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
+	lbtf_set_mac_control(priv);
+	lbtf_set_radio_control(priv);
+
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+	return 0;
+}
+
+static void lbtf_op_stop(struct ieee80211_hw *hw)
+{
+	struct lbtf_private *priv = hw->priv;
+	unsigned long flags;
+	struct sk_buff *skb;
+
+	struct cmd_ctrl_node *cmdnode;
+
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	/* Flush pending command nodes */
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
+		cmdnode->result = -ENOENT;
+		cmdnode->cmdwaitqwoken = 1;
+		wake_up_interruptible(&cmdnode->cmdwait_q);
+	}
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	cancel_work_sync(&priv->cmd_work);
+	cancel_work_sync(&priv->tx_work);
+	while ((skb = skb_dequeue(&priv->bc_ps_buf)))
+		dev_kfree_skb_any(skb);
+	priv->radioon = RADIO_OFF;
+	lbtf_set_radio_control(priv);
+
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+}
+
+static int lbtf_op_add_interface(struct ieee80211_hw *hw,
+			struct ieee80211_vif *vif)
+{
+	struct lbtf_private *priv = hw->priv;
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+	if (priv->vif != NULL)
+		return -EOPNOTSUPP;
+
+	priv->vif = vif;
+	switch (vif->type) {
+	case NL80211_IFTYPE_MESH_POINT:
+	case NL80211_IFTYPE_AP:
+		lbtf_set_mode(priv, LBTF_AP_MODE);
+		break;
+	case NL80211_IFTYPE_STATION:
+		lbtf_set_mode(priv, LBTF_STA_MODE);
+		break;
+	default:
+		priv->vif = NULL;
+		return -EOPNOTSUPP;
+	}
+	lbtf_set_mac_address(priv, (u8 *) vif->addr);
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+	return 0;
+}
+
+static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
+			struct ieee80211_vif *vif)
+{
+	struct lbtf_private *priv = hw->priv;
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	if (priv->vif->type == NL80211_IFTYPE_AP ||
+	    priv->vif->type == NL80211_IFTYPE_MESH_POINT)
+		lbtf_beacon_ctrl(priv, 0, 0);
+	lbtf_set_mode(priv, LBTF_PASSIVE_MODE);
+	lbtf_set_bssid(priv, 0, NULL);
+	priv->vif = NULL;
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+}
+
+static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct lbtf_private *priv = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	if (conf->chandef.chan->center_freq != priv->cur_freq) {
+		priv->cur_freq = conf->chandef.chan->center_freq;
+		lbtf_set_channel(priv, conf->chandef.chan->hw_value);
+	}
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+	return 0;
+}
+
+static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw,
+				     struct netdev_hw_addr_list *mc_list)
+{
+	struct lbtf_private *priv = hw->priv;
+	int i;
+	struct netdev_hw_addr *ha;
+	int mc_count = netdev_hw_addr_list_count(mc_list);
+
+	if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE)
+		return mc_count;
+
+	priv->nr_of_multicastmacaddr = mc_count;
+	i = 0;
+	netdev_hw_addr_list_for_each(ha, mc_list)
+		memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN);
+
+	return mc_count;
+}
+
+#define SUPPORTED_FIF_FLAGS  FIF_ALLMULTI
+static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
+			unsigned int changed_flags,
+			unsigned int *new_flags,
+			u64 multicast)
+{
+	struct lbtf_private *priv = hw->priv;
+	int old_mac_control = priv->mac_control;
+
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	changed_flags &= SUPPORTED_FIF_FLAGS;
+	*new_flags &= SUPPORTED_FIF_FLAGS;
+
+	if (!changed_flags) {
+		lbtf_deb_leave(LBTF_DEB_MACOPS);
+		return;
+	}
+
+	priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
+	if (*new_flags & (FIF_ALLMULTI) ||
+	    multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) {
+		priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
+		priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
+	} else if (multicast) {
+		priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
+		priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
+		lbtf_cmd_set_mac_multicast_addr(priv);
+	} else {
+		priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE |
+				       CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
+		if (priv->nr_of_multicastmacaddr) {
+			priv->nr_of_multicastmacaddr = 0;
+			lbtf_cmd_set_mac_multicast_addr(priv);
+		}
+	}
+
+
+	if (priv->mac_control != old_mac_control)
+		lbtf_set_mac_control(priv);
+
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+}
+
+static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
+			struct ieee80211_vif *vif,
+			struct ieee80211_bss_conf *bss_conf,
+			u64 changes)
+{
+	struct lbtf_private *priv = hw->priv;
+	struct sk_buff *beacon;
+	lbtf_deb_enter(LBTF_DEB_MACOPS);
+
+	if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) {
+		switch (priv->vif->type) {
+		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_MESH_POINT:
+			beacon = ieee80211_beacon_get(hw, vif, 0);
+			if (beacon) {
+				lbtf_beacon_set(priv, beacon);
+				kfree_skb(beacon);
+				lbtf_beacon_ctrl(priv, 1,
+						 bss_conf->beacon_int);
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (changes & BSS_CHANGED_BSSID) {
+		bool activate = !is_zero_ether_addr(bss_conf->bssid);
+		lbtf_set_bssid(priv, activate, bss_conf->bssid);
+	}
+
+	if (changes & BSS_CHANGED_ERP_PREAMBLE) {
+		if (bss_conf->use_short_preamble)
+			priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
+		else
+			priv->preamble = CMD_TYPE_LONG_PREAMBLE;
+		lbtf_set_radio_control(priv);
+	}
+
+	lbtf_deb_leave(LBTF_DEB_MACOPS);
+}
+
+static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx,
+				struct survey_info *survey)
+{
+	struct lbtf_private *priv = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+
+	if (idx != 0)
+		return -ENOENT;
+
+	survey->channel = conf->chandef.chan;
+	survey->filled = SURVEY_INFO_NOISE_DBM;
+	survey->noise = priv->noise;
+
+	return 0;
+}
+
+static const struct ieee80211_ops lbtf_ops = {
+	.tx			= lbtf_op_tx,
+	.wake_tx_queue		= ieee80211_handle_wake_tx_queue,
+	.start			= lbtf_op_start,
+	.stop			= lbtf_op_stop,
+	.add_interface		= lbtf_op_add_interface,
+	.remove_interface	= lbtf_op_remove_interface,
+	.config			= lbtf_op_config,
+	.prepare_multicast	= lbtf_op_prepare_multicast,
+	.configure_filter	= lbtf_op_configure_filter,
+	.bss_info_changed	= lbtf_op_bss_info_changed,
+	.get_survey		= lbtf_op_get_survey,
+};
+
+int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
+{
+	struct ieee80211_rx_status stats;
+	struct rxpd *prxpd;
+	int need_padding;
+	struct ieee80211_hdr *hdr;
+
+	lbtf_deb_enter(LBTF_DEB_RX);
+
+	if (priv->radioon != RADIO_ON) {
+		lbtf_deb_rx("rx before we turned on the radio");
+		goto done;
+	}
+
+	prxpd = (struct rxpd *) skb->data;
+
+	memset(&stats, 0, sizeof(stats));
+	if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
+		stats.flag |= RX_FLAG_FAILED_FCS_CRC;
+	stats.freq = priv->cur_freq;
+	stats.band = NL80211_BAND_2GHZ;
+	stats.signal = prxpd->snr - prxpd->nf;
+	priv->noise = prxpd->nf;
+	/* Marvell rate index has a hole at value 4 */
+	if (prxpd->rx_rate > 4)
+		--prxpd->rx_rate;
+	stats.rate_idx = prxpd->rx_rate;
+	skb_pull(skb, sizeof(struct rxpd));
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+
+	need_padding = ieee80211_is_data_qos(hdr->frame_control);
+	need_padding ^= ieee80211_has_a4(hdr->frame_control);
+	need_padding ^= ieee80211_is_data_qos(hdr->frame_control) &&
+			(*ieee80211_get_qos_ctl(hdr) &
+			 IEEE80211_QOS_CTL_A_MSDU_PRESENT);
+
+	if (need_padding) {
+		memmove(skb->data + 2, skb->data, skb->len);
+		skb_reserve(skb, 2);
+	}
+
+	memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
+
+	lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
+	       skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
+	lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data,
+	             min_t(unsigned int, skb->len, 100));
+
+	ieee80211_rx_irqsafe(priv->hw, skb);
+
+done:
+	lbtf_deb_leave(LBTF_DEB_RX);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lbtf_rx);
+
+/*
+ * lbtf_add_card: Add and initialize the card.
+ *
+ *  Returns: pointer to struct lbtf_priv.
+ */
+struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev,
+				   const struct lbtf_ops *ops)
+{
+	struct ieee80211_hw *hw;
+	struct lbtf_private *priv = NULL;
+
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+
+	hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops);
+	if (!hw)
+		goto done;
+
+	priv = hw->priv;
+	if (lbtf_init_adapter(priv))
+		goto err_init_adapter;
+
+	priv->hw = hw;
+	priv->card = card;
+	priv->ops = ops;
+	priv->tx_skb = NULL;
+	priv->radioon = RADIO_OFF;
+
+	hw->queues = 1;
+	ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
+	ieee80211_hw_set(hw, SIGNAL_DBM);
+	hw->extra_tx_headroom = sizeof(struct txpd);
+	memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels));
+	memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates));
+	priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates);
+	priv->band.bitrates = priv->rates;
+	priv->band.n_channels = ARRAY_SIZE(lbtf_channels);
+	priv->band.channels = priv->channels;
+	hw->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
+	hw->wiphy->interface_modes =
+		BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_ADHOC);
+	skb_queue_head_init(&priv->bc_ps_buf);
+
+	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
+
+	SET_IEEE80211_DEV(hw, dmdev);
+
+	INIT_WORK(&priv->cmd_work, lbtf_cmd_work);
+	INIT_WORK(&priv->tx_work, lbtf_tx_work);
+
+	if (priv->ops->hw_prog_firmware(priv)) {
+		lbtf_deb_usbd(dmdev, "Error programming the firmware\n");
+		priv->ops->hw_reset_device(priv);
+		goto err_init_adapter;
+	}
+
+	eth_broadcast_addr(priv->current_addr);
+	if (lbtf_update_hw_spec(priv))
+		goto err_init_adapter;
+
+	if (priv->fwrelease < LBTF_FW_VER_MIN ||
+	    priv->fwrelease > LBTF_FW_VER_MAX) {
+		goto err_init_adapter;
+	}
+
+	/* The firmware seems to start with the radio enabled. Turn it
+	 * off before an actual mac80211 start callback is invoked.
+	 */
+	lbtf_set_radio_control(priv);
+
+	if (ieee80211_register_hw(hw))
+		goto err_init_adapter;
+
+	dev_info(dmdev, "libertastf: Marvell WLAN 802.11 thinfirm adapter\n");
+	goto done;
+
+err_init_adapter:
+	lbtf_free_adapter(priv);
+	ieee80211_free_hw(hw);
+	priv = NULL;
+
+done:
+	lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv);
+	return priv;
+}
+EXPORT_SYMBOL_GPL(lbtf_add_card);
+
+
+int lbtf_remove_card(struct lbtf_private *priv)
+{
+	struct ieee80211_hw *hw = priv->hw;
+
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+
+	priv->surpriseremoved = 1;
+	del_timer(&priv->command_timer);
+	lbtf_free_adapter(priv);
+	priv->hw = NULL;
+	ieee80211_unregister_hw(hw);
+	ieee80211_free_hw(hw);
+
+	lbtf_deb_leave(LBTF_DEB_MAIN);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lbtf_remove_card);
+
+void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
+
+	ieee80211_tx_info_clear_status(info);
+	/*
+	 * Commented out, otherwise we never go beyond 1Mbit/s using mac80211
+	 * default pid rc algorithm.
+	 *
+	 * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt;
+	 */
+	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail)
+		info->flags |= IEEE80211_TX_STAT_ACK;
+	skb_pull(priv->tx_skb, sizeof(struct txpd));
+	ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
+	priv->tx_skb = NULL;
+	if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf))
+		ieee80211_wake_queues(priv->hw);
+	else
+		queue_work(lbtf_wq, &priv->tx_work);
+}
+EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback);
+
+void lbtf_bcn_sent(struct lbtf_private *priv)
+{
+	struct sk_buff *skb = NULL;
+
+	if (priv->vif->type != NL80211_IFTYPE_AP)
+		return;
+
+	if (skb_queue_empty(&priv->bc_ps_buf)) {
+		bool tx_buff_bc = false;
+
+		while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) {
+			skb_queue_tail(&priv->bc_ps_buf, skb);
+			tx_buff_bc = true;
+		}
+		if (tx_buff_bc) {
+			ieee80211_stop_queues(priv->hw);
+			queue_work(lbtf_wq, &priv->tx_work);
+		}
+	}
+
+	skb = ieee80211_beacon_get(priv->hw, priv->vif, 0);
+
+	if (skb) {
+		lbtf_beacon_set(priv, skb);
+		kfree_skb(skb);
+	}
+}
+EXPORT_SYMBOL_GPL(lbtf_bcn_sent);
+
+static int __init lbtf_init_module(void)
+{
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+	lbtf_wq = alloc_workqueue("libertastf", WQ_MEM_RECLAIM, 0);
+	if (lbtf_wq == NULL) {
+		printk(KERN_ERR "libertastf: couldn't create workqueue\n");
+		return -ENOMEM;
+	}
+	lbtf_deb_leave(LBTF_DEB_MAIN);
+	return 0;
+}
+
+static void __exit lbtf_exit_module(void)
+{
+	lbtf_deb_enter(LBTF_DEB_MAIN);
+	destroy_workqueue(lbtf_wq);
+	lbtf_deb_leave(LBTF_DEB_MAIN);
+}
+
+module_init(lbtf_init_module);
+module_exit(lbtf_exit_module);
+
+MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library");
+MODULE_AUTHOR("Cozybit Inc.");
+MODULE_LICENSE("GPL");