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, 524 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
new file mode 100644
index 000000000..533471e69
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -0,0 +1,524 @@
+/*
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "htc.h"
+
+#define FUDGE 2
+
+void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
+{
+	struct ath_hw *ah = priv->ah;
+	struct ath9k_tx_queue_info qi, qi_be;
+
+	memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
+	memset(&qi_be, 0, sizeof(struct ath9k_tx_queue_info));
+
+	ath9k_hw_get_txq_props(ah, priv->beacon.beaconq, &qi);
+
+	if (priv->ah->opmode == NL80211_IFTYPE_AP ||
+	    priv->ah->opmode == NL80211_IFTYPE_MESH_POINT) {
+		qi.tqi_aifs = 1;
+		qi.tqi_cwmin = 0;
+		qi.tqi_cwmax = 0;
+	} else if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
+		int qnum = priv->hwq_map[IEEE80211_AC_BE];
+
+		ath9k_hw_get_txq_props(ah, qnum, &qi_be);
+
+		qi.tqi_aifs = qi_be.tqi_aifs;
+
+		/*
+		 * For WIFI Beacon Distribution
+		 * Long slot time  : 2x cwmin
+		 * Short slot time : 4x cwmin
+		 */
+		if (ah->slottime == 20)
+			qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
+		else
+			qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
+
+		qi.tqi_cwmax = qi_be.tqi_cwmax;
+
+	}
+
+	if (!ath9k_hw_set_txq_props(ah, priv->beacon.beaconq, &qi)) {
+		ath_err(ath9k_hw_common(ah),
+			"Unable to update beacon queue %u!\n", priv->beacon.beaconq);
+	} else {
+		ath9k_hw_resettxqueue(ah, priv->beacon.beaconq);
+	}
+}
+
+/*
+ * Both nexttbtt and intval have to be in usecs.
+ */
+static void ath9k_htc_beacon_init(struct ath9k_htc_priv *priv,
+				  struct ath_beacon_config *conf,
+				  bool reset_tsf)
+{
+	struct ath_hw *ah = priv->ah;
+	int ret __attribute__ ((unused));
+	__be32 htc_imask = 0;
+	u8 cmd_rsp;
+
+	if (conf->intval >= TU_TO_USEC(DEFAULT_SWBA_RESPONSE))
+		ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
+	else
+		ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;
+
+	WMI_CMD(WMI_DISABLE_INTR_CMDID);
+	if (reset_tsf)
+		ath9k_hw_reset_tsf(ah);
+	ath9k_htc_beaconq_config(priv);
+	ath9k_hw_beaconinit(ah, conf->nexttbtt, conf->intval);
+	priv->beacon.bmisscnt = 0;
+	htc_imask = cpu_to_be32(ah->imask);
+	WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
+}
+
+static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
+					struct ath_beacon_config *bss_conf)
+{
+	struct ath9k_beacon_state bs;
+	enum ath9k_int imask = 0;
+	__be32 htc_imask = 0;
+	int ret __attribute__ ((unused));
+	u8 cmd_rsp;
+
+	if (ath9k_cmn_beacon_config_sta(priv->ah, bss_conf, &bs) == -EPERM)
+		return;
+
+	WMI_CMD(WMI_DISABLE_INTR_CMDID);
+	ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
+	imask |= ATH9K_INT_BMISS;
+	htc_imask = cpu_to_be32(imask);
+	WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
+}
+
+static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
+				       struct ath_beacon_config *conf)
+{
+	struct ath_hw *ah = priv->ah;
+	ah->imask = 0;
+
+	ath9k_cmn_beacon_config_ap(ah, conf, ATH9K_HTC_MAX_BCN_VIF);
+	ath9k_htc_beacon_init(priv, conf, false);
+}
+
+static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
+					  struct ath_beacon_config *conf)
+{
+	struct ath_hw *ah = priv->ah;
+	ah->imask = 0;
+
+	ath9k_cmn_beacon_config_adhoc(ah, conf);
+	ath9k_htc_beacon_init(priv, conf, conf->ibss_creator);
+}
+
+void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
+			enum htc_endpoint_id ep_id, bool txok)
+{
+	dev_kfree_skb_any(skb);
+}
+
+static void ath9k_htc_send_buffered(struct ath9k_htc_priv *priv,
+				    int slot)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ieee80211_vif *vif;
+	struct sk_buff *skb;
+	struct ieee80211_hdr *hdr;
+	int padpos, padsize, ret, tx_slot;
+
+	spin_lock_bh(&priv->beacon_lock);
+
+	vif = priv->beacon.bslot[slot];
+
+	skb = ieee80211_get_buffered_bc(priv->hw, vif);
+
+	while(skb) {
+		hdr = (struct ieee80211_hdr *) skb->data;
+
+		padpos = ieee80211_hdrlen(hdr->frame_control);
+		padsize = padpos & 3;
+		if (padsize && skb->len > padpos) {
+			if (skb_headroom(skb) < padsize) {
+				dev_kfree_skb_any(skb);
+				goto next;
+			}
+			skb_push(skb, padsize);
+			memmove(skb->data, skb->data + padsize, padpos);
+		}
+
+		tx_slot = ath9k_htc_tx_get_slot(priv);
+		if (tx_slot < 0) {
+			ath_dbg(common, XMIT, "No free CAB slot\n");
+			dev_kfree_skb_any(skb);
+			goto next;
+		}
+
+		ret = ath9k_htc_tx_start(priv, NULL, skb, tx_slot, true);
+		if (ret != 0) {
+			ath9k_htc_tx_clear_slot(priv, tx_slot);
+			dev_kfree_skb_any(skb);
+
+			ath_dbg(common, XMIT, "Failed to send CAB frame\n");
+		} else {
+			spin_lock_bh(&priv->tx.tx_lock);
+			priv->tx.queued_cnt++;
+			spin_unlock_bh(&priv->tx.tx_lock);
+		}
+	next:
+		skb = ieee80211_get_buffered_bc(priv->hw, vif);
+	}
+
+	spin_unlock_bh(&priv->beacon_lock);
+}
+
+static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
+				  int slot)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ieee80211_vif *vif;
+	struct ath9k_htc_vif *avp;
+	struct tx_beacon_header beacon_hdr;
+	struct ath9k_htc_tx_ctl *tx_ctl;
+	struct ieee80211_tx_info *info;
+	struct ieee80211_mgmt *mgmt;
+	struct sk_buff *beacon;
+	u8 *tx_fhdr;
+	int ret;
+
+	memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));
+
+	spin_lock_bh(&priv->beacon_lock);
+
+	vif = priv->beacon.bslot[slot];
+	avp = (struct ath9k_htc_vif *)vif->drv_priv;
+
+	if (unlikely(test_bit(ATH_OP_SCANNING, &common->op_flags))) {
+		spin_unlock_bh(&priv->beacon_lock);
+		return;
+	}
+
+	/* Get a new beacon */
+	beacon = ieee80211_beacon_get(priv->hw, vif, 0);
+	if (!beacon) {
+		spin_unlock_bh(&priv->beacon_lock);
+		return;
+	}
+
+	/*
+	 * Update the TSF adjust value here, the HW will
+	 * add this value for every beacon.
+	 */
+	mgmt = (struct ieee80211_mgmt *)beacon->data;
+	mgmt->u.beacon.timestamp = avp->tsfadjust;
+
+	info = IEEE80211_SKB_CB(beacon);
+	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+		struct ieee80211_hdr *hdr =
+			(struct ieee80211_hdr *) beacon->data;
+		avp->seq_no += 0x10;
+		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+		hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
+	}
+
+	tx_ctl = HTC_SKB_CB(beacon);
+	memset(tx_ctl, 0, sizeof(*tx_ctl));
+
+	tx_ctl->type = ATH9K_HTC_BEACON;
+	tx_ctl->epid = priv->beacon_ep;
+
+	beacon_hdr.vif_index = avp->index;
+	tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
+	memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));
+
+	ret = htc_send(priv->htc, beacon);
+	if (ret != 0) {
+		if (ret == -ENOMEM) {
+			ath_dbg(common, BSTUCK,
+				"Failed to send beacon, no free TX buffer\n");
+		}
+		dev_kfree_skb_any(beacon);
+	}
+
+	spin_unlock_bh(&priv->beacon_lock);
+
+	ath9k_htc_csa_is_finished(priv);
+}
+
+static int ath9k_htc_choose_bslot(struct ath9k_htc_priv *priv,
+				  struct wmi_event_swba *swba)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	u64 tsf;
+	u32 tsftu;
+	u16 intval;
+	int slot;
+
+	intval = priv->cur_beacon_conf.beacon_interval;
+
+	tsf = be64_to_cpu(swba->tsf);
+	tsftu = TSF_TO_TU(tsf >> 32, tsf);
+	slot = ((tsftu % intval) * ATH9K_HTC_MAX_BCN_VIF) / intval;
+	slot = ATH9K_HTC_MAX_BCN_VIF - slot - 1;
+
+	ath_dbg(common, BEACON,
+		"Choose slot: %d, tsf: %llu, tsftu: %u, intval: %u\n",
+		slot, tsf, tsftu, intval);
+
+	return slot;
+}
+
+void ath9k_htc_swba(struct ath9k_htc_priv *priv,
+		    struct wmi_event_swba *swba)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	int slot;
+
+	if (swba->beacon_pending != 0) {
+		priv->beacon.bmisscnt++;
+		if (priv->beacon.bmisscnt > BSTUCK_THRESHOLD) {
+			ath_dbg(common, BSTUCK, "Beacon stuck, HW reset\n");
+			ieee80211_queue_work(priv->hw,
+					     &priv->fatal_work);
+		}
+		return;
+	}
+
+	if (priv->beacon.bmisscnt) {
+		ath_dbg(common, BSTUCK,
+			"Resuming beacon xmit after %u misses\n",
+			priv->beacon.bmisscnt);
+		priv->beacon.bmisscnt = 0;
+	}
+
+	slot = ath9k_htc_choose_bslot(priv, swba);
+	spin_lock_bh(&priv->beacon_lock);
+	if (priv->beacon.bslot[slot] == NULL) {
+		spin_unlock_bh(&priv->beacon_lock);
+		return;
+	}
+	spin_unlock_bh(&priv->beacon_lock);
+
+	ath9k_htc_send_buffered(priv, slot);
+	ath9k_htc_send_beacon(priv, slot);
+}
+
+void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
+			    struct ieee80211_vif *vif)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
+	int i = 0;
+
+	spin_lock_bh(&priv->beacon_lock);
+	for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) {
+		if (priv->beacon.bslot[i] == NULL) {
+			avp->bslot = i;
+			break;
+		}
+	}
+
+	priv->beacon.bslot[avp->bslot] = vif;
+	spin_unlock_bh(&priv->beacon_lock);
+
+	ath_dbg(common, CONFIG, "Added interface at beacon slot: %d\n",
+		avp->bslot);
+}
+
+void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
+			    struct ieee80211_vif *vif)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
+
+	spin_lock_bh(&priv->beacon_lock);
+	priv->beacon.bslot[avp->bslot] = NULL;
+	spin_unlock_bh(&priv->beacon_lock);
+
+	ath_dbg(common, CONFIG, "Removed interface at beacon slot: %d\n",
+		avp->bslot);
+}
+
+/*
+ * Calculate the TSF adjustment value for all slots
+ * other than zero.
+ */
+void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
+			     struct ieee80211_vif *vif)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
+	struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
+	u64 tsfadjust;
+
+	if (avp->bslot == 0)
+		return;
+
+	/*
+	 * The beacon interval cannot be different for multi-AP mode,
+	 * and we reach here only for VIF slots greater than zero,
+	 * so beacon_interval is guaranteed to be set in cur_conf.
+	 */
+	tsfadjust = cur_conf->beacon_interval * avp->bslot / ATH9K_HTC_MAX_BCN_VIF;
+	avp->tsfadjust = cpu_to_le64(TU_TO_USEC(tsfadjust));
+
+	ath_dbg(common, CONFIG, "tsfadjust is: %llu for bslot: %d\n",
+		(unsigned long long)tsfadjust, avp->bslot);
+}
+
+static void ath9k_htc_beacon_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	bool *beacon_configured = data;
+	struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+
+	if (vif->type == NL80211_IFTYPE_STATION &&
+	    avp->beacon_configured)
+		*beacon_configured = true;
+}
+
+static bool ath9k_htc_check_beacon_config(struct ath9k_htc_priv *priv,
+					  struct ieee80211_vif *vif)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
+	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+	bool beacon_configured;
+
+	/*
+	 * Changing the beacon interval when multiple AP interfaces
+	 * are configured will affect beacon transmission of all
+	 * of them.
+	 */
+	if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
+	    (priv->num_ap_vif > 1) &&
+	    (vif->type == NL80211_IFTYPE_AP) &&
+	    (cur_conf->beacon_interval != bss_conf->beacon_int)) {
+		ath_dbg(common, CONFIG,
+			"Changing beacon interval of multiple AP interfaces !\n");
+		return false;
+	}
+
+	/*
+	 * If the HW is operating in AP mode, any new station interfaces that
+	 * are added cannot change the beacon parameters.
+	 */
+	if (priv->num_ap_vif &&
+	    (vif->type != NL80211_IFTYPE_AP)) {
+		ath_dbg(common, CONFIG,
+			"HW in AP mode, cannot set STA beacon parameters\n");
+		return false;
+	}
+
+	/*
+	 * The beacon parameters are configured only for the first
+	 * station interface.
+	 */
+	if ((priv->ah->opmode == NL80211_IFTYPE_STATION) &&
+	    (priv->num_sta_vif > 1) &&
+	    (vif->type == NL80211_IFTYPE_STATION)) {
+		beacon_configured = false;
+		ieee80211_iterate_active_interfaces_atomic(
+			priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+			ath9k_htc_beacon_iter, &beacon_configured);
+
+		if (beacon_configured) {
+			ath_dbg(common, CONFIG,
+				"Beacon already configured for a station interface\n");
+			return false;
+		}
+	}
+
+	return true;
+}
+
+void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
+			     struct ieee80211_vif *vif)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
+	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+	struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+
+	if (!ath9k_htc_check_beacon_config(priv, vif))
+		return;
+
+	cur_conf->beacon_interval = bss_conf->beacon_int;
+	if (cur_conf->beacon_interval == 0)
+		cur_conf->beacon_interval = 100;
+
+	cur_conf->dtim_period = bss_conf->dtim_period;
+	cur_conf->bmiss_timeout =
+		ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_STATION:
+		ath9k_htc_beacon_config_sta(priv, cur_conf);
+		avp->beacon_configured = true;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+	case NL80211_IFTYPE_AP:
+		ath9k_htc_beacon_config_ap(priv, cur_conf);
+		break;
+	default:
+		ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
+		return;
+	}
+}
+
+void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
+
+	switch (priv->ah->opmode) {
+	case NL80211_IFTYPE_STATION:
+		ath9k_htc_beacon_config_sta(priv, cur_conf);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+	case NL80211_IFTYPE_AP:
+		ath9k_htc_beacon_config_ap(priv, cur_conf);
+		break;
+	default:
+		ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
+		return;
+	}
+}
+
+bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv)
+{
+	struct ieee80211_vif *vif;
+
+	vif = priv->csa_vif;
+	if (!vif || !vif->bss_conf.csa_active)
+		return false;
+
+	if (!ieee80211_beacon_cntdwn_is_complete(vif))
+		return false;
+
+	ieee80211_csa_finish(vif);
+
+	priv->csa_vif = NULL;
+	return true;
+}