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, 431 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c
new file mode 100644
index 000000000..4c1aecd11
--- /dev/null
+++ b/drivers/net/wireless/ath/carl9170/fw.c
@@ -0,0 +1,431 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Atheros CARL9170 driver
+ *
+ * firmware parser
+ *
+ * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/crc32.h>
+#include <linux/module.h>
+#include "carl9170.h"
+#include "fwcmd.h"
+#include "version.h"
+
+static const u8 otus_magic[4] = { OTUS_MAGIC };
+
+static const void *carl9170_fw_find_desc(struct ar9170 *ar, const u8 descid[4],
+	const unsigned int len, const u8 compatible_revision)
+{
+	const struct carl9170fw_desc_head *iter;
+
+	carl9170fw_for_each_hdr(iter, ar->fw.desc) {
+		if (carl9170fw_desc_cmp(iter, descid, len,
+					compatible_revision))
+			return (void *)iter;
+	}
+
+	/* needed to find the LAST desc */
+	if (carl9170fw_desc_cmp(iter, descid, len,
+				compatible_revision))
+		return (void *)iter;
+
+	return NULL;
+}
+
+static int carl9170_fw_verify_descs(struct ar9170 *ar,
+	const struct carl9170fw_desc_head *head, unsigned int max_len)
+{
+	const struct carl9170fw_desc_head *pos;
+	unsigned long pos_addr, end_addr;
+	unsigned int pos_length;
+
+	if (max_len < sizeof(*pos))
+		return -ENODATA;
+
+	max_len = min_t(unsigned int, CARL9170FW_DESC_MAX_LENGTH, max_len);
+
+	pos = head;
+	pos_addr = (unsigned long) pos;
+	end_addr = pos_addr + max_len;
+
+	while (pos_addr < end_addr) {
+		if (pos_addr + sizeof(*head) > end_addr)
+			return -E2BIG;
+
+		pos_length = le16_to_cpu(pos->length);
+
+		if (pos_length < sizeof(*head))
+			return -EBADMSG;
+
+		if (pos_length > max_len)
+			return -EOVERFLOW;
+
+		if (pos_addr + pos_length > end_addr)
+			return -EMSGSIZE;
+
+		if (carl9170fw_desc_cmp(pos, LAST_MAGIC,
+					CARL9170FW_LAST_DESC_SIZE,
+					CARL9170FW_LAST_DESC_CUR_VER))
+			return 0;
+
+		pos_addr += pos_length;
+		pos = (void *)pos_addr;
+		max_len -= pos_length;
+	}
+	return -EINVAL;
+}
+
+static void carl9170_fw_info(struct ar9170 *ar)
+{
+	const struct carl9170fw_motd_desc *motd_desc;
+	unsigned int str_ver_len;
+	u32 fw_date;
+
+	dev_info(&ar->udev->dev, "driver   API: %s 2%03d-%02d-%02d [%d-%d]\n",
+		CARL9170FW_VERSION_GIT, CARL9170FW_VERSION_YEAR,
+		CARL9170FW_VERSION_MONTH, CARL9170FW_VERSION_DAY,
+		CARL9170FW_API_MIN_VER, CARL9170FW_API_MAX_VER);
+
+	motd_desc = carl9170_fw_find_desc(ar, MOTD_MAGIC,
+		sizeof(*motd_desc), CARL9170FW_MOTD_DESC_CUR_VER);
+
+	if (motd_desc) {
+		str_ver_len = strnlen(motd_desc->release,
+			CARL9170FW_MOTD_RELEASE_LEN);
+
+		fw_date = le32_to_cpu(motd_desc->fw_year_month_day);
+
+		dev_info(&ar->udev->dev, "firmware API: %.*s 2%03d-%02d-%02d\n",
+			 str_ver_len, motd_desc->release,
+			 CARL9170FW_GET_YEAR(fw_date),
+			 CARL9170FW_GET_MONTH(fw_date),
+			 CARL9170FW_GET_DAY(fw_date));
+
+		strscpy(ar->hw->wiphy->fw_version, motd_desc->release,
+			sizeof(ar->hw->wiphy->fw_version));
+	}
+}
+
+static bool valid_dma_addr(const u32 address)
+{
+	if (address >= AR9170_SRAM_OFFSET &&
+	    address < (AR9170_SRAM_OFFSET + AR9170_SRAM_SIZE))
+		return true;
+
+	return false;
+}
+
+static bool valid_cpu_addr(const u32 address)
+{
+	if (valid_dma_addr(address) || (address >= AR9170_PRAM_OFFSET &&
+	    address < (AR9170_PRAM_OFFSET + AR9170_PRAM_SIZE)))
+		return true;
+
+	return false;
+}
+
+static int carl9170_fw_checksum(struct ar9170 *ar, const __u8 *data,
+				size_t len)
+{
+	const struct carl9170fw_otus_desc *otus_desc;
+	const struct carl9170fw_last_desc *last_desc;
+	const struct carl9170fw_chk_desc *chk_desc;
+	unsigned long fin, diff;
+	unsigned int dsc_len;
+	u32 crc32;
+
+	last_desc = carl9170_fw_find_desc(ar, LAST_MAGIC,
+		sizeof(*last_desc), CARL9170FW_LAST_DESC_CUR_VER);
+	if (!last_desc)
+		return -EINVAL;
+
+	otus_desc = carl9170_fw_find_desc(ar, OTUS_MAGIC,
+		sizeof(*otus_desc), CARL9170FW_OTUS_DESC_CUR_VER);
+	if (!otus_desc) {
+		dev_err(&ar->udev->dev, "failed to find compatible firmware "
+			"descriptor.\n");
+		return -ENODATA;
+	}
+
+	chk_desc = carl9170_fw_find_desc(ar, CHK_MAGIC,
+		sizeof(*chk_desc), CARL9170FW_CHK_DESC_CUR_VER);
+
+	if (!chk_desc) {
+		dev_warn(&ar->udev->dev, "Unprotected firmware image.\n");
+		return 0;
+	}
+
+	dsc_len = min_t(unsigned int, len,
+			(unsigned long)chk_desc - (unsigned long)otus_desc);
+
+	fin = (unsigned long) last_desc + sizeof(*last_desc);
+	diff = fin - (unsigned long) otus_desc;
+
+	if (diff < len)
+		len -= diff;
+
+	if (len < 256)
+		return -EIO;
+
+	crc32 = crc32_le(~0, data, len);
+	if (cpu_to_le32(crc32) != chk_desc->fw_crc32) {
+		dev_err(&ar->udev->dev, "fw checksum test failed.\n");
+		return -ENOEXEC;
+	}
+
+	crc32 = crc32_le(crc32, (void *)otus_desc, dsc_len);
+	if (cpu_to_le32(crc32) != chk_desc->hdr_crc32) {
+		dev_err(&ar->udev->dev, "descriptor check failed.\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int carl9170_fw_tx_sequence(struct ar9170 *ar)
+{
+	const struct carl9170fw_txsq_desc *txsq_desc;
+
+	txsq_desc = carl9170_fw_find_desc(ar, TXSQ_MAGIC, sizeof(*txsq_desc),
+					  CARL9170FW_TXSQ_DESC_CUR_VER);
+	if (txsq_desc) {
+		ar->fw.tx_seq_table = le32_to_cpu(txsq_desc->seq_table_addr);
+		if (!valid_cpu_addr(ar->fw.tx_seq_table))
+			return -EINVAL;
+	} else {
+		ar->fw.tx_seq_table = 0;
+	}
+
+	return 0;
+}
+
+static void carl9170_fw_set_if_combinations(struct ar9170 *ar,
+					    u16 if_comb_types)
+{
+	if (ar->fw.vif_num < 2)
+		return;
+
+	ar->if_comb_limits[0].max = ar->fw.vif_num;
+	ar->if_comb_limits[0].types = if_comb_types;
+
+	ar->if_combs[0].num_different_channels = 1;
+	ar->if_combs[0].max_interfaces = ar->fw.vif_num;
+	ar->if_combs[0].limits = ar->if_comb_limits;
+	ar->if_combs[0].n_limits = ARRAY_SIZE(ar->if_comb_limits);
+
+	ar->hw->wiphy->iface_combinations = ar->if_combs;
+	ar->hw->wiphy->n_iface_combinations = ARRAY_SIZE(ar->if_combs);
+}
+
+static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len)
+{
+	const struct carl9170fw_otus_desc *otus_desc;
+	int err;
+	u16 if_comb_types;
+
+	err = carl9170_fw_checksum(ar, data, len);
+	if (err)
+		return err;
+
+	otus_desc = carl9170_fw_find_desc(ar, OTUS_MAGIC,
+		sizeof(*otus_desc), CARL9170FW_OTUS_DESC_CUR_VER);
+	if (!otus_desc) {
+		return -ENODATA;
+	}
+
+#define SUPP(feat)						\
+	(carl9170fw_supports(otus_desc->feature_set, feat))
+
+	if (!SUPP(CARL9170FW_DUMMY_FEATURE)) {
+		dev_err(&ar->udev->dev, "invalid firmware descriptor "
+			"format detected.\n");
+		return -EINVAL;
+	}
+
+	ar->fw.api_version = otus_desc->api_ver;
+
+	if (ar->fw.api_version < CARL9170FW_API_MIN_VER ||
+	    ar->fw.api_version > CARL9170FW_API_MAX_VER) {
+		dev_err(&ar->udev->dev, "unsupported firmware api version.\n");
+		return -EINVAL;
+	}
+
+	if (!SUPP(CARL9170FW_COMMAND_PHY) || SUPP(CARL9170FW_UNUSABLE) ||
+	    !SUPP(CARL9170FW_HANDLE_BACK_REQ)) {
+		dev_err(&ar->udev->dev, "firmware does support "
+			"mandatory features.\n");
+		return -ECANCELED;
+	}
+
+	if (ilog2(le32_to_cpu(otus_desc->feature_set)) >=
+		__CARL9170FW_FEATURE_NUM) {
+		dev_warn(&ar->udev->dev, "driver does not support all "
+			 "firmware features.\n");
+	}
+
+	if (!SUPP(CARL9170FW_COMMAND_CAM)) {
+		dev_info(&ar->udev->dev, "crypto offloading is disabled "
+			 "by firmware.\n");
+		ar->fw.disable_offload_fw = true;
+	}
+
+	if (SUPP(CARL9170FW_PSM) && SUPP(CARL9170FW_FIXED_5GHZ_PSM))
+		ieee80211_hw_set(ar->hw, SUPPORTS_PS);
+
+	if (!SUPP(CARL9170FW_USB_INIT_FIRMWARE)) {
+		dev_err(&ar->udev->dev, "firmware does not provide "
+			"mandatory interfaces.\n");
+		return -EINVAL;
+	}
+
+	if (SUPP(CARL9170FW_MINIBOOT))
+		ar->fw.offset = le16_to_cpu(otus_desc->miniboot_size);
+	else
+		ar->fw.offset = 0;
+
+	if (SUPP(CARL9170FW_USB_DOWN_STREAM)) {
+		ar->hw->extra_tx_headroom += sizeof(struct ar9170_stream);
+		ar->fw.tx_stream = true;
+	}
+
+	if (SUPP(CARL9170FW_USB_UP_STREAM))
+		ar->fw.rx_stream = true;
+
+	if (SUPP(CARL9170FW_RX_FILTER)) {
+		ar->fw.rx_filter = true;
+		ar->rx_filter_caps = FIF_FCSFAIL | FIF_PLCPFAIL |
+			FIF_CONTROL | FIF_PSPOLL | FIF_OTHER_BSS;
+	}
+
+	if (SUPP(CARL9170FW_HW_COUNTERS))
+		ar->fw.hw_counters = true;
+
+	if (SUPP(CARL9170FW_WOL))
+		device_set_wakeup_enable(&ar->udev->dev, true);
+
+	if (SUPP(CARL9170FW_RX_BA_FILTER))
+		ar->fw.ba_filter = true;
+
+	if_comb_types = BIT(NL80211_IFTYPE_STATION) |
+			BIT(NL80211_IFTYPE_P2P_CLIENT);
+
+	ar->fw.vif_num = otus_desc->vif_num;
+	ar->fw.cmd_bufs = otus_desc->cmd_bufs;
+	ar->fw.address = le32_to_cpu(otus_desc->fw_address);
+	ar->fw.rx_size = le16_to_cpu(otus_desc->rx_max_frame_len);
+	ar->fw.mem_blocks = min_t(unsigned int, otus_desc->tx_descs, 0xfe);
+	atomic_set(&ar->mem_free_blocks, ar->fw.mem_blocks);
+	ar->fw.mem_block_size = le16_to_cpu(otus_desc->tx_frag_len);
+
+	if (ar->fw.vif_num >= AR9170_MAX_VIRTUAL_MAC || !ar->fw.vif_num ||
+	    ar->fw.mem_blocks < 16 || !ar->fw.cmd_bufs ||
+	    ar->fw.mem_block_size < 64 || ar->fw.mem_block_size > 512 ||
+	    ar->fw.rx_size > 32768 || ar->fw.rx_size < 4096 ||
+	    !valid_cpu_addr(ar->fw.address)) {
+		dev_err(&ar->udev->dev, "firmware shows obvious signs of "
+			"malicious tampering.\n");
+		return -EINVAL;
+	}
+
+	ar->fw.beacon_addr = le32_to_cpu(otus_desc->bcn_addr);
+	ar->fw.beacon_max_len = le16_to_cpu(otus_desc->bcn_len);
+
+	if (valid_dma_addr(ar->fw.beacon_addr) && ar->fw.beacon_max_len >=
+	    AR9170_MAC_BCN_LENGTH_MAX) {
+		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+
+		if (SUPP(CARL9170FW_WLANTX_CAB)) {
+			if_comb_types |= BIT(NL80211_IFTYPE_AP);
+
+#ifdef CONFIG_MAC80211_MESH
+			if_comb_types |=
+				BIT(NL80211_IFTYPE_MESH_POINT);
+#endif /* CONFIG_MAC80211_MESH */
+		}
+	}
+
+	carl9170_fw_set_if_combinations(ar, if_comb_types);
+
+	ar->hw->wiphy->interface_modes |= if_comb_types;
+
+	ar->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+
+	/* As IBSS Encryption is software-based, IBSS RSN is supported. */
+	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
+		 WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_SUPPORTS_TDLS;
+
+#undef SUPPORTED
+	return carl9170_fw_tx_sequence(ar);
+}
+
+static struct carl9170fw_desc_head *
+carl9170_find_fw_desc(struct ar9170 *ar, const __u8 *fw_data, const size_t len)
+
+{
+	int scan = 0, found = 0;
+
+	if (!carl9170fw_size_check(len)) {
+		dev_err(&ar->udev->dev, "firmware size is out of bound.\n");
+		return NULL;
+	}
+
+	while (scan < len - sizeof(struct carl9170fw_desc_head)) {
+		if (fw_data[scan++] == otus_magic[found])
+			found++;
+		else
+			found = 0;
+
+		if (scan >= len)
+			break;
+
+		if (found == sizeof(otus_magic))
+			break;
+	}
+
+	if (found != sizeof(otus_magic))
+		return NULL;
+
+	return (void *)&fw_data[scan - found];
+}
+
+int carl9170_parse_firmware(struct ar9170 *ar)
+{
+	const struct carl9170fw_desc_head *fw_desc = NULL;
+	const struct firmware *fw = ar->fw.fw;
+	unsigned long header_offset = 0;
+	int err;
+
+	if (WARN_ON(!fw))
+		return -EINVAL;
+
+	fw_desc = carl9170_find_fw_desc(ar, fw->data, fw->size);
+
+	if (!fw_desc) {
+		dev_err(&ar->udev->dev, "unsupported firmware.\n");
+		return -ENODATA;
+	}
+
+	header_offset = (unsigned long)fw_desc - (unsigned long)fw->data;
+
+	err = carl9170_fw_verify_descs(ar, fw_desc, fw->size - header_offset);
+	if (err) {
+		dev_err(&ar->udev->dev, "damaged firmware (%d).\n", err);
+		return err;
+	}
+
+	ar->fw.desc = fw_desc;
+
+	carl9170_fw_info(ar);
+
+	err = carl9170_fw(ar, fw->data, fw->size);
+	if (err) {
+		dev_err(&ar->udev->dev, "failed to parse firmware (%d).\n",
+			err);
+		return err;
+	}
+
+	return 0;
+}