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, 370 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/11ac.c b/drivers/net/wireless/marvell/mwifiex/11ac.c
new file mode 100644
index 000000000..b9278d996
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/11ac.c
@@ -0,0 +1,370 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: 802.11ac
+ *
+ * Copyright 2011-2020 NXP
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "fw.h"
+#include "main.h"
+#include "11ac.h"
+
+/* Tables of the MCS map to the highest data rate (in Mbps) supported
+ * for long GI.
+ */
+static const u16 max_rate_lgi_80MHZ[8][3] = {
+	{0x124, 0x15F, 0x186},	/* NSS = 1 */
+	{0x249, 0x2BE, 0x30C},  /* NSS = 2 */
+	{0x36D, 0x41D, 0x492},  /* NSS = 3 */
+	{0x492, 0x57C, 0x618},  /* NSS = 4 */
+	{0x5B6, 0x6DB, 0x79E},  /* NSS = 5 */
+	{0x6DB, 0x83A, 0x0},    /* NSS = 6 */
+	{0x7FF, 0x999, 0xAAA},  /* NSS = 7 */
+	{0x924, 0xAF8, 0xC30}   /* NSS = 8 */
+};
+
+static const u16 max_rate_lgi_160MHZ[8][3] = {
+	{0x249, 0x2BE, 0x30C},   /* NSS = 1 */
+	{0x492, 0x57C, 0x618},   /* NSS = 2 */
+	{0x6DB, 0x83A, 0x0},     /* NSS = 3 */
+	{0x924, 0xAF8, 0xC30},   /* NSS = 4 */
+	{0xB6D, 0xDB6, 0xF3C},   /* NSS = 5 */
+	{0xDB6, 0x1074, 0x1248}, /* NSS = 6 */
+	{0xFFF, 0x1332, 0x1554}, /* NSS = 7 */
+	{0x1248, 0x15F0, 0x1860} /* NSS = 8 */
+};
+
+/* This function converts the 2-bit MCS map to the highest long GI
+ * VHT data rate.
+ */
+static u16
+mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
+				  u8 bands, u16 mcs_map)
+{
+	u8 i, nss, mcs;
+	u16 max_rate = 0;
+	u32 usr_vht_cap_info = 0;
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (bands & BAND_AAC)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* find the max NSS supported */
+	nss = 1;
+	for (i = 1; i <= 8; i++) {
+		mcs = GET_VHTNSSMCS(mcs_map, i);
+		if (mcs < IEEE80211_VHT_MCS_NOT_SUPPORTED)
+			nss = i;
+	}
+	mcs = GET_VHTNSSMCS(mcs_map, nss);
+
+	/* if mcs is 3, nss must be 1 (NSS = 1). Default mcs to MCS 0~9 */
+	if (mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+		mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
+
+	if (GET_VHTCAP_CHWDSET(usr_vht_cap_info)) {
+		/* support 160 MHz */
+		max_rate = max_rate_lgi_160MHZ[nss - 1][mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS6 */
+			max_rate = max_rate_lgi_160MHZ[nss - 1][mcs - 1];
+	} else {
+		max_rate = max_rate_lgi_80MHZ[nss - 1][mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS3 */
+			max_rate = max_rate_lgi_80MHZ[nss - 1][mcs - 1];
+	}
+
+	return max_rate;
+}
+
+static void
+mwifiex_fill_vht_cap_info(struct mwifiex_private *priv,
+			  struct ieee80211_vht_cap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (bands & BAND_A)
+		vht_cap->vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_a);
+	else
+		vht_cap->vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_bg);
+}
+
+void mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
+			      struct ieee80211_vht_cap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u16 mcs_map_user, mcs_map_resp, mcs_map_result;
+	u16 mcs_user, mcs_resp, nss, tmp;
+
+	/* Fill VHT cap info */
+	mwifiex_fill_vht_cap_info(priv, vht_cap, bands);
+
+	/* rx MCS Set: find the minimum of the user rx mcs and ap rx mcs */
+	mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->supp_mcs.rx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->supp_mcs.rx_highest = cpu_to_le16(tmp);
+
+	/* tx MCS Set: find the minimum of the user tx mcs and ap tx mcs */
+	mcs_map_user = GET_DEVTXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->supp_mcs.tx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->supp_mcs.tx_highest = cpu_to_le16(tmp);
+
+	return;
+}
+
+int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
+			     struct mwifiex_bssdescriptor *bss_desc,
+			     u8 **buffer)
+{
+	struct mwifiex_ie_types_vhtcap *vht_cap;
+	struct mwifiex_ie_types_oper_mode_ntf *oper_ntf;
+	struct ieee_types_oper_mode_ntf *ieee_oper_ntf;
+	struct mwifiex_ie_types_vht_oper *vht_op;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u8 supp_chwd_set;
+	u32 usr_vht_cap_info;
+	int ret_len = 0;
+
+	if (bss_desc->bss_band & BAND_A)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* VHT Capabilities IE */
+	if (bss_desc->bcn_vht_cap) {
+		vht_cap = (struct mwifiex_ie_types_vhtcap *)*buffer;
+		memset(vht_cap, 0, sizeof(*vht_cap));
+		vht_cap->header.type = cpu_to_le16(WLAN_EID_VHT_CAPABILITY);
+		vht_cap->header.len  =
+				cpu_to_le16(sizeof(struct ieee80211_vht_cap));
+		memcpy((u8 *)vht_cap + sizeof(struct mwifiex_ie_types_header),
+		       (u8 *)bss_desc->bcn_vht_cap,
+		       le16_to_cpu(vht_cap->header.len));
+
+		mwifiex_fill_vht_cap_tlv(priv, &vht_cap->vht_cap,
+					 bss_desc->bss_band);
+		*buffer += sizeof(*vht_cap);
+		ret_len += sizeof(*vht_cap);
+	}
+
+	/* VHT Operation IE */
+	if (bss_desc->bcn_vht_oper) {
+		if (priv->bss_mode == NL80211_IFTYPE_STATION) {
+			vht_op = (struct mwifiex_ie_types_vht_oper *)*buffer;
+			memset(vht_op, 0, sizeof(*vht_op));
+			vht_op->header.type =
+					cpu_to_le16(WLAN_EID_VHT_OPERATION);
+			vht_op->header.len  = cpu_to_le16(sizeof(*vht_op) -
+				      sizeof(struct mwifiex_ie_types_header));
+			memcpy((u8 *)vht_op +
+				sizeof(struct mwifiex_ie_types_header),
+			       (u8 *)bss_desc->bcn_vht_oper,
+			       le16_to_cpu(vht_op->header.len));
+
+			/* negotiate the channel width and central freq
+			 * and keep the central freq as the peer suggests
+			 */
+			supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
+
+			switch (supp_chwd_set) {
+			case 0:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 1:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_160MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 2:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80P80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			default:
+				vht_op->chan_width =
+				     IEEE80211_VHT_CHANWIDTH_USE_HT;
+				break;
+			}
+
+			*buffer += sizeof(*vht_op);
+			ret_len += sizeof(*vht_op);
+		}
+	}
+
+	/* Operating Mode Notification IE */
+	if (bss_desc->oper_mode) {
+		ieee_oper_ntf = bss_desc->oper_mode;
+		oper_ntf = (void *)*buffer;
+		memset(oper_ntf, 0, sizeof(*oper_ntf));
+		oper_ntf->header.type = cpu_to_le16(WLAN_EID_OPMODE_NOTIF);
+		oper_ntf->header.len = cpu_to_le16(sizeof(u8));
+		oper_ntf->oper_mode = ieee_oper_ntf->oper_mode;
+		*buffer += sizeof(*oper_ntf);
+		ret_len += sizeof(*oper_ntf);
+	}
+
+	return ret_len;
+}
+
+int mwifiex_cmd_11ac_cfg(struct mwifiex_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct mwifiex_11ac_vht_cfg *cfg)
+{
+	struct host_cmd_11ac_vht_cfg *vhtcfg = &cmd->params.vht_cfg;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_11AC_CFG);
+	cmd->size = cpu_to_le16(sizeof(struct host_cmd_11ac_vht_cfg) +
+				S_DS_GEN);
+	vhtcfg->action = cpu_to_le16(cmd_action);
+	vhtcfg->band_config = cfg->band_config;
+	vhtcfg->misc_config = cfg->misc_config;
+	vhtcfg->cap_info = cpu_to_le32(cfg->cap_info);
+	vhtcfg->mcs_tx_set = cpu_to_le32(cfg->mcs_tx_set);
+	vhtcfg->mcs_rx_set = cpu_to_le32(cfg->mcs_rx_set);
+
+	return 0;
+}
+
+/* This function initializes the BlockACK setup information for given
+ * mwifiex_private structure for 11ac enabled networks.
+ */
+void mwifiex_set_11ac_ba_params(struct mwifiex_private *priv)
+{
+	priv->add_ba_param.timeout = MWIFIEX_DEFAULT_BLOCK_ACK_TIMEOUT;
+
+	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
+		priv->add_ba_param.tx_win_size =
+					   MWIFIEX_11AC_UAP_AMPDU_DEF_TXWINSIZE;
+		priv->add_ba_param.rx_win_size =
+					   MWIFIEX_11AC_UAP_AMPDU_DEF_RXWINSIZE;
+	} else {
+		priv->add_ba_param.tx_win_size =
+					   MWIFIEX_11AC_STA_AMPDU_DEF_TXWINSIZE;
+		priv->add_ba_param.rx_win_size =
+					   MWIFIEX_11AC_STA_AMPDU_DEF_RXWINSIZE;
+	}
+
+	return;
+}
+
+bool mwifiex_is_bss_in_11ac_mode(struct mwifiex_private *priv)
+{
+	struct mwifiex_bssdescriptor *bss_desc;
+	struct ieee80211_vht_operation *vht_oper;
+
+	bss_desc = &priv->curr_bss_params.bss_descriptor;
+	vht_oper = bss_desc->bcn_vht_oper;
+
+	if (!bss_desc->bcn_vht_cap || !vht_oper)
+		return false;
+
+	if (vht_oper->chan_width == IEEE80211_VHT_CHANWIDTH_USE_HT)
+		return false;
+
+	return true;
+}
+
+u8 mwifiex_get_center_freq_index(struct mwifiex_private *priv, u8 band,
+				 u32 pri_chan, u8 chan_bw)
+{
+	u8 center_freq_idx = 0;
+
+	if (band & BAND_AAC) {
+		switch (pri_chan) {
+		case 36:
+		case 40:
+		case 44:
+		case 48:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 42;
+			break;
+		case 52:
+		case 56:
+		case 60:
+		case 64:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 58;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 50;
+			break;
+		case 100:
+		case 104:
+		case 108:
+		case 112:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 106;
+			break;
+		case 116:
+		case 120:
+		case 124:
+		case 128:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 122;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 114;
+			break;
+		case 132:
+		case 136:
+		case 140:
+		case 144:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 138;
+			break;
+		case 149:
+		case 153:
+		case 157:
+		case 161:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 155;
+			break;
+		default:
+			center_freq_idx = 42;
+		}
+	}
+
+	return center_freq_idx;
+}