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, 540 insertions, 0 deletions

diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
new file mode 100644
index 000000000..88262d3a9
--- /dev/null
+++ b/drivers/bluetooth/ath3k.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ */
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/firmware.h>
+#include <linux/usb.h>
+#include <asm/unaligned.h>
+#include <net/bluetooth/bluetooth.h>
+
+#define VERSION "1.0"
+#define ATH3K_FIRMWARE	"ath3k-1.fw"
+
+#define ATH3K_DNLOAD				0x01
+#define ATH3K_GETSTATE				0x05
+#define ATH3K_SET_NORMAL_MODE			0x07
+#define ATH3K_GETVERSION			0x09
+#define USB_REG_SWITCH_VID_PID			0x0a
+
+#define ATH3K_MODE_MASK				0x3F
+#define ATH3K_NORMAL_MODE			0x0E
+
+#define ATH3K_PATCH_UPDATE			0x80
+#define ATH3K_SYSCFG_UPDATE			0x40
+
+#define ATH3K_XTAL_FREQ_26M			0x00
+#define ATH3K_XTAL_FREQ_40M			0x01
+#define ATH3K_XTAL_FREQ_19P2			0x02
+#define ATH3K_NAME_LEN				0xFF
+
+struct ath3k_version {
+	__le32	rom_version;
+	__le32	build_version;
+	__le32	ram_version;
+	__u8	ref_clock;
+	__u8	reserved[7];
+} __packed;
+
+static const struct usb_device_id ath3k_table[] = {
+	/* Atheros AR3011 */
+	{ USB_DEVICE(0x0CF3, 0x3000) },
+
+	/* Atheros AR3011 with sflash firmware*/
+	{ USB_DEVICE(0x0489, 0xE027) },
+	{ USB_DEVICE(0x0489, 0xE03D) },
+	{ USB_DEVICE(0x04F2, 0xAFF1) },
+	{ USB_DEVICE(0x0930, 0x0215) },
+	{ USB_DEVICE(0x0CF3, 0x3002) },
+	{ USB_DEVICE(0x0CF3, 0xE019) },
+	{ USB_DEVICE(0x13d3, 0x3304) },
+
+	/* Atheros AR9285 Malbec with sflash firmware */
+	{ USB_DEVICE(0x03F0, 0x311D) },
+
+	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0489, 0xe04d) },
+	{ USB_DEVICE(0x0489, 0xe04e) },
+	{ USB_DEVICE(0x0489, 0xe057) },
+	{ USB_DEVICE(0x0489, 0xe056) },
+	{ USB_DEVICE(0x0489, 0xe05f) },
+	{ USB_DEVICE(0x0489, 0xe076) },
+	{ USB_DEVICE(0x0489, 0xe078) },
+	{ USB_DEVICE(0x0489, 0xe095) },
+	{ USB_DEVICE(0x04c5, 0x1330) },
+	{ USB_DEVICE(0x04CA, 0x3004) },
+	{ USB_DEVICE(0x04CA, 0x3005) },
+	{ USB_DEVICE(0x04CA, 0x3006) },
+	{ USB_DEVICE(0x04CA, 0x3007) },
+	{ USB_DEVICE(0x04CA, 0x3008) },
+	{ USB_DEVICE(0x04CA, 0x300b) },
+	{ USB_DEVICE(0x04CA, 0x300d) },
+	{ USB_DEVICE(0x04CA, 0x300f) },
+	{ USB_DEVICE(0x04CA, 0x3010) },
+	{ USB_DEVICE(0x04CA, 0x3014) },
+	{ USB_DEVICE(0x04CA, 0x3018) },
+	{ USB_DEVICE(0x0930, 0x0219) },
+	{ USB_DEVICE(0x0930, 0x021c) },
+	{ USB_DEVICE(0x0930, 0x0220) },
+	{ USB_DEVICE(0x0930, 0x0227) },
+	{ USB_DEVICE(0x0b05, 0x17d0) },
+	{ USB_DEVICE(0x0CF3, 0x0036) },
+	{ USB_DEVICE(0x0CF3, 0x3004) },
+	{ USB_DEVICE(0x0CF3, 0x3008) },
+	{ USB_DEVICE(0x0CF3, 0x311D) },
+	{ USB_DEVICE(0x0CF3, 0x311E) },
+	{ USB_DEVICE(0x0CF3, 0x311F) },
+	{ USB_DEVICE(0x0cf3, 0x3121) },
+	{ USB_DEVICE(0x0CF3, 0x817a) },
+	{ USB_DEVICE(0x0CF3, 0x817b) },
+	{ USB_DEVICE(0x0cf3, 0xe003) },
+	{ USB_DEVICE(0x0CF3, 0xE004) },
+	{ USB_DEVICE(0x0CF3, 0xE005) },
+	{ USB_DEVICE(0x0CF3, 0xE006) },
+	{ USB_DEVICE(0x13d3, 0x3362) },
+	{ USB_DEVICE(0x13d3, 0x3375) },
+	{ USB_DEVICE(0x13d3, 0x3393) },
+	{ USB_DEVICE(0x13d3, 0x3395) },
+	{ USB_DEVICE(0x13d3, 0x3402) },
+	{ USB_DEVICE(0x13d3, 0x3408) },
+	{ USB_DEVICE(0x13d3, 0x3423) },
+	{ USB_DEVICE(0x13d3, 0x3432) },
+	{ USB_DEVICE(0x13d3, 0x3472) },
+	{ USB_DEVICE(0x13d3, 0x3474) },
+	{ USB_DEVICE(0x13d3, 0x3487) },
+	{ USB_DEVICE(0x13d3, 0x3490) },
+
+	/* Atheros AR5BBU12 with sflash firmware */
+	{ USB_DEVICE(0x0489, 0xE02C) },
+
+	/* Atheros AR5BBU22 with sflash firmware */
+	{ USB_DEVICE(0x0489, 0xE036) },
+	{ USB_DEVICE(0x0489, 0xE03C) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, ath3k_table);
+
+#define BTUSB_ATH3012		0x80
+/* This table is to load patch and sysconfig files
+ * for AR3012
+ */
+static const struct usb_device_id ath3k_blist_tbl[] = {
+
+	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
+
+	/* Atheros AR5BBU22 with sflash firmware */
+	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
+
+	{ }	/* Terminating entry */
+};
+
+static inline void ath3k_log_failed_loading(int err, int len, int size,
+					    int count)
+{
+	BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
+	       err, len, size, count);
+}
+
+#define USB_REQ_DFU_DNLOAD	1
+#define BULK_SIZE		4096
+#define FW_HDR_SIZE		20
+#define TIMEGAP_USEC_MIN	50
+#define TIMEGAP_USEC_MAX	100
+
+static int ath3k_load_firmware(struct usb_device *udev,
+				const struct firmware *firmware)
+{
+	u8 *send_buf;
+	int len = 0;
+	int err, pipe, size, sent = 0;
+	int count = firmware->size;
+
+	BT_DBG("udev %p", udev);
+
+	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
+	if (!send_buf) {
+		BT_ERR("Can't allocate memory chunk for firmware");
+		return -ENOMEM;
+	}
+
+	err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
+				   0, 0, firmware->data, FW_HDR_SIZE,
+				   USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
+	if (err) {
+		BT_ERR("Can't change to loading configuration err");
+		goto error;
+	}
+	sent += FW_HDR_SIZE;
+	count -= FW_HDR_SIZE;
+
+	pipe = usb_sndbulkpipe(udev, 0x02);
+
+	while (count) {
+		/* workaround the compatibility issue with xHCI controller*/
+		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
+
+		size = min_t(uint, count, BULK_SIZE);
+		memcpy(send_buf, firmware->data + sent, size);
+
+		err = usb_bulk_msg(udev, pipe, send_buf, size,
+					&len, 3000);
+
+		if (err || (len != size)) {
+			ath3k_log_failed_loading(err, len, size, count);
+			goto error;
+		}
+
+		sent  += size;
+		count -= size;
+	}
+
+error:
+	kfree(send_buf);
+	return err;
+}
+
+static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
+{
+	return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE,
+				    USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+				    state, 1, USB_CTRL_SET_TIMEOUT,
+				    GFP_KERNEL);
+}
+
+static int ath3k_get_version(struct usb_device *udev,
+			struct ath3k_version *version)
+{
+	return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION,
+				    USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+				    version, sizeof(*version), USB_CTRL_SET_TIMEOUT,
+				    GFP_KERNEL);
+}
+
+static int ath3k_load_fwfile(struct usb_device *udev,
+		const struct firmware *firmware)
+{
+	u8 *send_buf;
+	int len = 0;
+	int err, pipe, size, count, sent = 0;
+	int ret;
+
+	count = firmware->size;
+
+	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
+	if (!send_buf) {
+		BT_ERR("Can't allocate memory chunk for firmware");
+		return -ENOMEM;
+	}
+
+	size = min_t(uint, count, FW_HDR_SIZE);
+
+	ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0,
+				   firmware->data, size, USB_CTRL_SET_TIMEOUT,
+				   GFP_KERNEL);
+	if (ret) {
+		BT_ERR("Can't change to loading configuration err");
+		kfree(send_buf);
+		return ret;
+	}
+
+	sent += size;
+	count -= size;
+
+	pipe = usb_sndbulkpipe(udev, 0x02);
+
+	while (count) {
+		/* workaround the compatibility issue with xHCI controller*/
+		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
+
+		size = min_t(uint, count, BULK_SIZE);
+		memcpy(send_buf, firmware->data + sent, size);
+
+		err = usb_bulk_msg(udev, pipe, send_buf, size,
+					&len, 3000);
+		if (err || (len != size)) {
+			ath3k_log_failed_loading(err, len, size, count);
+			kfree(send_buf);
+			return err;
+		}
+		sent  += size;
+		count -= size;
+	}
+
+	kfree(send_buf);
+	return 0;
+}
+
+static void ath3k_switch_pid(struct usb_device *udev)
+{
+	usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR,
+			     0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
+}
+
+static int ath3k_set_normal_mode(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	int ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret) {
+		BT_ERR("Can't get state to change to normal mode err");
+		return ret;
+	}
+
+	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
+		BT_DBG("firmware was already in normal mode");
+		return 0;
+	}
+
+	return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE,
+				    USB_TYPE_VENDOR, 0, 0, NULL, 0,
+				    USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
+}
+
+static int ath3k_load_patch(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	char filename[ATH3K_NAME_LEN];
+	const struct firmware *firmware;
+	struct ath3k_version fw_version;
+	__u32 pt_rom_version, pt_build_version;
+	int ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret) {
+		BT_ERR("Can't get state to change to load ram patch err");
+		return ret;
+	}
+
+	if (fw_state & ATH3K_PATCH_UPDATE) {
+		BT_DBG("Patch was already downloaded");
+		return 0;
+	}
+
+	ret = ath3k_get_version(udev, &fw_version);
+	if (ret) {
+		BT_ERR("Can't get version to change to load ram patch err");
+		return ret;
+	}
+
+	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
+		 le32_to_cpu(fw_version.rom_version));
+
+	ret = request_firmware(&firmware, filename, &udev->dev);
+	if (ret < 0) {
+		BT_ERR("Patch file not found %s", filename);
+		return ret;
+	}
+
+	pt_rom_version = get_unaligned_le32(firmware->data +
+					    firmware->size - 8);
+	pt_build_version = get_unaligned_le32(firmware->data +
+					      firmware->size - 4);
+
+	if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
+	    pt_build_version <= le32_to_cpu(fw_version.build_version)) {
+		BT_ERR("Patch file version did not match with firmware");
+		release_firmware(firmware);
+		return -EINVAL;
+	}
+
+	ret = ath3k_load_fwfile(udev, firmware);
+	release_firmware(firmware);
+
+	return ret;
+}
+
+static int ath3k_load_syscfg(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	char filename[ATH3K_NAME_LEN];
+	const struct firmware *firmware;
+	struct ath3k_version fw_version;
+	int clk_value, ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret) {
+		BT_ERR("Can't get state to change to load configuration err");
+		return -EBUSY;
+	}
+
+	ret = ath3k_get_version(udev, &fw_version);
+	if (ret) {
+		BT_ERR("Can't get version to change to load ram patch err");
+		return ret;
+	}
+
+	switch (fw_version.ref_clock) {
+
+	case ATH3K_XTAL_FREQ_26M:
+		clk_value = 26;
+		break;
+	case ATH3K_XTAL_FREQ_40M:
+		clk_value = 40;
+		break;
+	case ATH3K_XTAL_FREQ_19P2:
+		clk_value = 19;
+		break;
+	default:
+		clk_value = 0;
+		break;
+	}
+
+	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
+		le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
+
+	ret = request_firmware(&firmware, filename, &udev->dev);
+	if (ret < 0) {
+		BT_ERR("Configuration file not found %s", filename);
+		return ret;
+	}
+
+	ret = ath3k_load_fwfile(udev, firmware);
+	release_firmware(firmware);
+
+	return ret;
+}
+
+static int ath3k_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	const struct firmware *firmware;
+	struct usb_device *udev = interface_to_usbdev(intf);
+	int ret;
+
+	BT_DBG("intf %p id %p", intf, id);
+
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+		return -ENODEV;
+
+	/* match device ID in ath3k blacklist table */
+	if (!id->driver_info) {
+		const struct usb_device_id *match;
+
+		match = usb_match_id(intf, ath3k_blist_tbl);
+		if (match)
+			id = match;
+	}
+
+	/* load patch and sysconfig files for AR3012 */
+	if (id->driver_info & BTUSB_ATH3012) {
+		/* New firmware with patch and sysconfig files already loaded */
+		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
+			return -ENODEV;
+
+		ret = ath3k_load_patch(udev);
+		if (ret < 0) {
+			BT_ERR("Loading patch file failed");
+			return ret;
+		}
+		ret = ath3k_load_syscfg(udev);
+		if (ret < 0) {
+			BT_ERR("Loading sysconfig file failed");
+			return ret;
+		}
+		ret = ath3k_set_normal_mode(udev);
+		if (ret) {
+			BT_ERR("Set normal mode failed");
+			return ret;
+		}
+		ath3k_switch_pid(udev);
+		return 0;
+	}
+
+	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
+	if (ret < 0) {
+		if (ret == -ENOENT)
+			BT_ERR("Firmware file \"%s\" not found",
+							ATH3K_FIRMWARE);
+		else
+			BT_ERR("Firmware file \"%s\" request failed (err=%d)",
+							ATH3K_FIRMWARE, ret);
+		return ret;
+	}
+
+	ret = ath3k_load_firmware(udev, firmware);
+	release_firmware(firmware);
+
+	return ret;
+}
+
+static void ath3k_disconnect(struct usb_interface *intf)
+{
+	BT_DBG("%s intf %p", __func__, intf);
+}
+
+static struct usb_driver ath3k_driver = {
+	.name		= "ath3k",
+	.probe		= ath3k_probe,
+	.disconnect	= ath3k_disconnect,
+	.id_table	= ath3k_table,
+	.disable_hub_initiated_lpm = 1,
+};
+
+module_usb_driver(ath3k_driver);
+
+MODULE_AUTHOR("Atheros Communications");
+MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(ATH3K_FIRMWARE);