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, 822 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
new file mode 100644
index 000000000..11ed30d6b
--- /dev/null
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -0,0 +1,822 @@
+/*-
+ * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
+ * Copyright (c) 2004-2005 Atheros Communications, Inc.
+ * Copyright (c) 2006 Devicescape Software, Inc.
+ * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
+ * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
+ * Copyright (c) 2010 Bruno Randolf <br1@einfach.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <net/mac80211.h>
+#include <asm/unaligned.h>
+
+#include "ath5k.h"
+#include "base.h"
+#include "reg.h"
+
+/********************\
+* Mac80211 functions *
+\********************/
+
+static void
+ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
+	 struct sk_buff *skb)
+{
+	struct ath5k_hw *ah = hw->priv;
+	u16 qnum = skb_get_queue_mapping(skb);
+
+	if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
+		ieee80211_free_txskb(hw, skb);
+		return;
+	}
+
+	ath5k_tx_queue(hw, skb, &ah->txqs[qnum], control);
+}
+
+
+static int
+ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct ath5k_hw *ah = hw->priv;
+	int ret;
+	struct ath5k_vif *avf = (void *)vif->drv_priv;
+
+	mutex_lock(&ah->lock);
+
+	if ((vif->type == NL80211_IFTYPE_AP ||
+	     vif->type == NL80211_IFTYPE_ADHOC)
+	    && (ah->num_ap_vifs + ah->num_adhoc_vifs) >= ATH_BCBUF) {
+		ret = -ELNRNG;
+		goto end;
+	}
+
+	/* Don't allow other interfaces if one ad-hoc is configured.
+	 * TODO: Fix the problems with ad-hoc and multiple other interfaces.
+	 * We would need to operate the HW in ad-hoc mode to allow TSF updates
+	 * for the IBSS, but this breaks with additional AP or STA interfaces
+	 * at the moment. */
+	if (ah->num_adhoc_vifs ||
+	    (ah->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
+		ATH5K_ERR(ah, "Only one single ad-hoc interface is allowed.\n");
+		ret = -ELNRNG;
+		goto end;
+	}
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
+		avf->opmode = vif->type;
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+		goto end;
+	}
+
+	ah->nvifs++;
+	ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode);
+
+	/* Assign the vap/adhoc to a beacon xmit slot. */
+	if ((avf->opmode == NL80211_IFTYPE_AP) ||
+	    (avf->opmode == NL80211_IFTYPE_ADHOC) ||
+	    (avf->opmode == NL80211_IFTYPE_MESH_POINT)) {
+		int slot;
+
+		WARN_ON(list_empty(&ah->bcbuf));
+		avf->bbuf = list_first_entry(&ah->bcbuf, struct ath5k_buf,
+					     list);
+		list_del(&avf->bbuf->list);
+
+		avf->bslot = 0;
+		for (slot = 0; slot < ATH_BCBUF; slot++) {
+			if (!ah->bslot[slot]) {
+				avf->bslot = slot;
+				break;
+			}
+		}
+		BUG_ON(ah->bslot[avf->bslot] != NULL);
+		ah->bslot[avf->bslot] = vif;
+		if (avf->opmode == NL80211_IFTYPE_AP)
+			ah->num_ap_vifs++;
+		else if (avf->opmode == NL80211_IFTYPE_ADHOC)
+			ah->num_adhoc_vifs++;
+		else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
+			ah->num_mesh_vifs++;
+	}
+
+	/* Any MAC address is fine, all others are included through the
+	 * filter.
+	 */
+	ath5k_hw_set_lladdr(ah, vif->addr);
+
+	ath5k_update_bssid_mask_and_opmode(ah, vif);
+	ret = 0;
+end:
+	mutex_unlock(&ah->lock);
+	return ret;
+}
+
+
+static void
+ath5k_remove_interface(struct ieee80211_hw *hw,
+		       struct ieee80211_vif *vif)
+{
+	struct ath5k_hw *ah = hw->priv;
+	struct ath5k_vif *avf = (void *)vif->drv_priv;
+	unsigned int i;
+
+	mutex_lock(&ah->lock);
+	ah->nvifs--;
+
+	if (avf->bbuf) {
+		ath5k_txbuf_free_skb(ah, avf->bbuf);
+		list_add_tail(&avf->bbuf->list, &ah->bcbuf);
+		for (i = 0; i < ATH_BCBUF; i++) {
+			if (ah->bslot[i] == vif) {
+				ah->bslot[i] = NULL;
+				break;
+			}
+		}
+		avf->bbuf = NULL;
+	}
+	if (avf->opmode == NL80211_IFTYPE_AP)
+		ah->num_ap_vifs--;
+	else if (avf->opmode == NL80211_IFTYPE_ADHOC)
+		ah->num_adhoc_vifs--;
+	else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
+		ah->num_mesh_vifs--;
+
+	ath5k_update_bssid_mask_and_opmode(ah, NULL);
+	mutex_unlock(&ah->lock);
+}
+
+
+/*
+ * TODO: Phy disable/diversity etc
+ */
+static int
+ath5k_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct ath5k_hw *ah = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	int ret = 0;
+	int i;
+
+	mutex_lock(&ah->lock);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		ret = ath5k_chan_set(ah, &conf->chandef);
+		if (ret < 0)
+			goto unlock;
+	}
+
+	if ((changed & IEEE80211_CONF_CHANGE_POWER) &&
+	(ah->ah_txpower.txp_requested != conf->power_level)) {
+		ah->ah_txpower.txp_requested = conf->power_level;
+
+		/* Half dB steps */
+		ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2));
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+		ah->ah_retry_long = conf->long_frame_max_tx_count;
+		ah->ah_retry_short = conf->short_frame_max_tx_count;
+
+		for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++)
+			ath5k_hw_set_tx_retry_limits(ah, i);
+	}
+
+	/* TODO:
+	 * 1) Move this on config_interface and handle each case
+	 * separately eg. when we have only one STA vif, use
+	 * AR5K_ANTMODE_SINGLE_AP
+	 *
+	 * 2) Allow the user to change antenna mode eg. when only
+	 * one antenna is present
+	 *
+	 * 3) Allow the user to set default/tx antenna when possible
+	 *
+	 * 4) Default mode should handle 90% of the cases, together
+	 * with fixed a/b and single AP modes we should be able to
+	 * handle 99%. Sectored modes are extreme cases and i still
+	 * haven't found a usage for them. If we decide to support them,
+	 * then we must allow the user to set how many tx antennas we
+	 * have available
+	 */
+	ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode);
+
+unlock:
+	mutex_unlock(&ah->lock);
+	return ret;
+}
+
+
+static void
+ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		       struct ieee80211_bss_conf *bss_conf, u64 changes)
+{
+	struct ath5k_vif *avf = (void *)vif->drv_priv;
+	struct ath5k_hw *ah = hw->priv;
+	struct ath_common *common = ath5k_hw_common(ah);
+
+	mutex_lock(&ah->lock);
+
+	if (changes & BSS_CHANGED_BSSID) {
+		/* Cache for later use during resets */
+		memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
+		common->curaid = 0;
+		ath5k_hw_set_bssid(ah);
+	}
+
+	if (changes & BSS_CHANGED_BEACON_INT)
+		ah->bintval = bss_conf->beacon_int;
+
+	if (changes & BSS_CHANGED_ERP_SLOT) {
+		int slot_time;
+
+		ah->ah_short_slot = bss_conf->use_short_slot;
+		slot_time = ath5k_hw_get_default_slottime(ah) +
+			    3 * ah->ah_coverage_class;
+		ath5k_hw_set_ifs_intervals(ah, slot_time);
+	}
+
+	if (changes & BSS_CHANGED_ASSOC) {
+		avf->assoc = vif->cfg.assoc;
+		if (vif->cfg.assoc)
+			ah->assoc = vif->cfg.assoc;
+		else
+			ah->assoc = ath5k_any_vif_assoc(ah);
+
+		if (ah->opmode == NL80211_IFTYPE_STATION)
+			ath5k_set_beacon_filter(hw, ah->assoc);
+		ath5k_hw_set_ledstate(ah, ah->assoc ?
+			AR5K_LED_ASSOC : AR5K_LED_INIT);
+		if (vif->cfg.assoc) {
+			ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
+				  "Bss Info ASSOC %d, bssid: %pM\n",
+				  vif->cfg.aid, common->curbssid);
+			common->curaid = vif->cfg.aid;
+			ath5k_hw_set_bssid(ah);
+			/* Once ANI is available you would start it here */
+		}
+	}
+
+	if (changes & BSS_CHANGED_BEACON) {
+		spin_lock_bh(&ah->block);
+		ath5k_beacon_update(hw, vif);
+		spin_unlock_bh(&ah->block);
+	}
+
+	if (changes & BSS_CHANGED_BEACON_ENABLED)
+		ah->enable_beacon = bss_conf->enable_beacon;
+
+	if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED |
+		       BSS_CHANGED_BEACON_INT))
+		ath5k_beacon_config(ah);
+
+	mutex_unlock(&ah->lock);
+}
+
+
+static u64
+ath5k_prepare_multicast(struct ieee80211_hw *hw,
+			struct netdev_hw_addr_list *mc_list)
+{
+	u32 mfilt[2], val;
+	u8 pos;
+	struct netdev_hw_addr *ha;
+
+	mfilt[0] = 0;
+	mfilt[1] = 0;
+
+	netdev_hw_addr_list_for_each(ha, mc_list) {
+		/* calculate XOR of eight 6-bit values */
+		val = get_unaligned_le32(ha->addr + 0);
+		pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
+		val = get_unaligned_le32(ha->addr + 3);
+		pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
+		pos &= 0x3f;
+		mfilt[pos / 32] |= (1 << (pos % 32));
+		/* XXX: we might be able to just do this instead,
+		* but not sure, needs testing, if we do use this we'd
+		* need to inform below not to reset the mcast */
+		/* ath5k_hw_set_mcast_filterindex(ah,
+		 *      ha->addr[5]); */
+	}
+
+	return ((u64)(mfilt[1]) << 32) | mfilt[0];
+}
+
+
+/*
+ * o always accept unicast, broadcast, and multicast traffic
+ * o multicast traffic for all BSSIDs will be enabled if mac80211
+ *   says it should be
+ * o maintain current state of phy ofdm or phy cck error reception.
+ *   If the hardware detects any of these type of errors then
+ *   ath5k_hw_get_rx_filter() will pass to us the respective
+ *   hardware filters to be able to receive these type of frames.
+ * o probe request frames are accepted only when operating in
+ *   hostap, adhoc, or monitor modes
+ * o enable promiscuous mode according to the interface state
+ * o accept beacons:
+ *   - when operating in adhoc mode so the 802.11 layer creates
+ *     node table entries for peers,
+ *   - when operating in station mode for collecting rssi data when
+ *     the station is otherwise quiet, or
+ *   - when scanning
+ */
+static void
+ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
+		       unsigned int *new_flags, u64 multicast)
+{
+#define SUPPORTED_FIF_FLAGS \
+	(FIF_ALLMULTI | FIF_FCSFAIL | \
+	FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \
+	FIF_BCN_PRBRESP_PROMISC)
+
+	struct ath5k_hw *ah = hw->priv;
+	u32 mfilt[2], rfilt;
+	struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */
+
+	mutex_lock(&ah->lock);
+
+	mfilt[0] = multicast;
+	mfilt[1] = multicast >> 32;
+
+	/* Only deal with supported flags */
+	changed_flags &= SUPPORTED_FIF_FLAGS;
+	*new_flags &= SUPPORTED_FIF_FLAGS;
+
+	/* If HW detects any phy or radar errors, leave those filters on.
+	 * Also, always enable Unicast, Broadcasts and Multicast
+	 * XXX: move unicast, bssid broadcasts and multicast to mac80211 */
+	rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) |
+		(AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST |
+		AR5K_RX_FILTER_MCAST);
+
+	/* Note, AR5K_RX_FILTER_MCAST is already enabled */
+	if (*new_flags & FIF_ALLMULTI) {
+		mfilt[0] =  ~0;
+		mfilt[1] =  ~0;
+	}
+
+	/* This is the best we can do */
+	if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL))
+		rfilt |= AR5K_RX_FILTER_PHYERR;
+
+	/* FIF_BCN_PRBRESP_PROMISC really means to enable beacons
+	* and probes for any BSSID */
+	if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (ah->nvifs > 1))
+		rfilt |= AR5K_RX_FILTER_BEACON;
+
+	/* FIF_CONTROL doc says we should only pass on control frames for this
+	 * station. This needs testing. I believe right now this
+	 * enables *all* control frames, which is OK.. but
+	 * we should see if we can improve on granularity */
+	if (*new_flags & FIF_CONTROL)
+		rfilt |= AR5K_RX_FILTER_CONTROL;
+
+	/* Additional settings per mode -- this is per ath5k */
+
+	/* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */
+
+	switch (ah->opmode) {
+	case NL80211_IFTYPE_MESH_POINT:
+		rfilt |= AR5K_RX_FILTER_CONTROL |
+			 AR5K_RX_FILTER_BEACON |
+			 AR5K_RX_FILTER_PROBEREQ |
+			 AR5K_RX_FILTER_PROM;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+		rfilt |= AR5K_RX_FILTER_PROBEREQ |
+			 AR5K_RX_FILTER_BEACON;
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (ah->assoc)
+			rfilt |= AR5K_RX_FILTER_BEACON;
+		break;
+	default:
+		break;
+	}
+
+	iter_data.hw_macaddr = NULL;
+	iter_data.n_stas = 0;
+	iter_data.need_set_hw_addr = false;
+	ieee80211_iterate_active_interfaces_atomic(
+		ah->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+		ath5k_vif_iter, &iter_data);
+
+	/* Set up RX Filter */
+	if (iter_data.n_stas > 1) {
+		/* If you have multiple STA interfaces connected to
+		 * different APs, ARPs are not received (most of the time?)
+		 * Enabling PROMISC appears to fix that problem.
+		 */
+		rfilt |= AR5K_RX_FILTER_PROM;
+	}
+
+	/* Set filters */
+	ath5k_hw_set_rx_filter(ah, rfilt);
+
+	/* Set multicast bits */
+	ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]);
+	/* Set the cached hw filter flags, this will later actually
+	 * be set in HW */
+	ah->filter_flags = rfilt;
+	/* Store current FIF filter flags */
+	ah->fif_filter_flags = *new_flags;
+
+	mutex_unlock(&ah->lock);
+}
+
+
+static int
+ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+	      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+	      struct ieee80211_key_conf *key)
+{
+	struct ath5k_hw *ah = hw->priv;
+	struct ath_common *common = ath5k_hw_common(ah);
+	int ret = 0;
+
+	if (ath5k_modparam_nohwcrypt)
+		return -EOPNOTSUPP;
+
+	if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT)
+		return -EOPNOTSUPP;
+
+	if (vif->type == NL80211_IFTYPE_ADHOC &&
+	    (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
+	     key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
+	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+		/* don't program group keys when using IBSS_RSN */
+		return -EOPNOTSUPP;
+	}
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+	case WLAN_CIPHER_SUITE_TKIP:
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM)
+			break;
+		return -EOPNOTSUPP;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	mutex_lock(&ah->lock);
+
+	switch (cmd) {
+	case SET_KEY:
+		ret = ath_key_config(common, vif, sta, key);
+		if (ret >= 0) {
+			key->hw_key_idx = ret;
+			/* push IV and Michael MIC generation to stack */
+			key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+			if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
+				key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+			if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
+				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+			ret = 0;
+		}
+		break;
+	case DISABLE_KEY:
+		ath_key_delete(common, key->hw_key_idx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	mutex_unlock(&ah->lock);
+	return ret;
+}
+
+
+static void
+ath5k_sw_scan_start(struct ieee80211_hw *hw,
+		    struct ieee80211_vif *vif,
+		    const u8 *mac_addr)
+{
+	struct ath5k_hw *ah = hw->priv;
+	if (!ah->assoc)
+		ath5k_hw_set_ledstate(ah, AR5K_LED_SCAN);
+}
+
+
+static void
+ath5k_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct ath5k_hw *ah = hw->priv;
+	ath5k_hw_set_ledstate(ah, ah->assoc ?
+		AR5K_LED_ASSOC : AR5K_LED_INIT);
+}
+
+
+static int
+ath5k_get_stats(struct ieee80211_hw *hw,
+		struct ieee80211_low_level_stats *stats)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	/* Force update */
+	ath5k_hw_update_mib_counters(ah);
+
+	stats->dot11ACKFailureCount = ah->stats.ack_fail;
+	stats->dot11RTSFailureCount = ah->stats.rts_fail;
+	stats->dot11RTSSuccessCount = ah->stats.rts_ok;
+	stats->dot11FCSErrorCount = ah->stats.fcs_error;
+
+	return 0;
+}
+
+
+static int
+ath5k_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+	      unsigned int link_id, u16 queue,
+	      const struct ieee80211_tx_queue_params *params)
+{
+	struct ath5k_hw *ah = hw->priv;
+	struct ath5k_txq_info qi;
+	int ret = 0;
+
+	if (queue >= ah->ah_capabilities.cap_queues.q_tx_num)
+		return 0;
+
+	mutex_lock(&ah->lock);
+
+	ath5k_hw_get_tx_queueprops(ah, queue, &qi);
+
+	qi.tqi_aifs = params->aifs;
+	qi.tqi_cw_min = params->cw_min;
+	qi.tqi_cw_max = params->cw_max;
+	qi.tqi_burst_time = params->txop * 32;
+
+	ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
+		  "Configure tx [queue %d],  "
+		  "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
+		  queue, params->aifs, params->cw_min,
+		  params->cw_max, params->txop);
+
+	if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) {
+		ATH5K_ERR(ah,
+			  "Unable to update hardware queue %u!\n", queue);
+		ret = -EIO;
+	} else
+		ath5k_hw_reset_tx_queue(ah, queue);
+
+	mutex_unlock(&ah->lock);
+
+	return ret;
+}
+
+
+static u64
+ath5k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	return ath5k_hw_get_tsf64(ah);
+}
+
+
+static void
+ath5k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u64 tsf)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	ath5k_hw_set_tsf64(ah, tsf);
+}
+
+
+static void
+ath5k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	/*
+	 * in IBSS mode we need to update the beacon timers too.
+	 * this will also reset the TSF if we call it with 0
+	 */
+	if (ah->opmode == NL80211_IFTYPE_ADHOC)
+		ath5k_beacon_update_timers(ah, 0);
+	else
+		ath5k_hw_reset_tsf(ah);
+}
+
+
+static int
+ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey)
+{
+	struct ath5k_hw *ah = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	struct ath_common *common = ath5k_hw_common(ah);
+	struct ath_cycle_counters *cc = &common->cc_survey;
+	unsigned int div = common->clockrate * 1000;
+
+	if (idx != 0)
+		return -ENOENT;
+
+	spin_lock_bh(&common->cc_lock);
+	ath_hw_cycle_counters_update(common);
+	if (cc->cycles > 0) {
+		ah->survey.time += cc->cycles / div;
+		ah->survey.time_busy += cc->rx_busy / div;
+		ah->survey.time_rx += cc->rx_frame / div;
+		ah->survey.time_tx += cc->tx_frame / div;
+	}
+	memset(cc, 0, sizeof(*cc));
+	spin_unlock_bh(&common->cc_lock);
+
+	memcpy(survey, &ah->survey, sizeof(*survey));
+
+	survey->channel = conf->chandef.chan;
+	survey->noise = ah->ah_noise_floor;
+	survey->filled = SURVEY_INFO_NOISE_DBM |
+			SURVEY_INFO_IN_USE |
+			SURVEY_INFO_TIME |
+			SURVEY_INFO_TIME_BUSY |
+			SURVEY_INFO_TIME_RX |
+			SURVEY_INFO_TIME_TX;
+
+	return 0;
+}
+
+
+/**
+ * ath5k_set_coverage_class - Set IEEE 802.11 coverage class
+ *
+ * @hw: struct ieee80211_hw pointer
+ * @coverage_class: IEEE 802.11 coverage class number
+ *
+ * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given
+ * coverage class. The values are persistent, they are restored after device
+ * reset.
+ */
+static void
+ath5k_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	mutex_lock(&ah->lock);
+	ath5k_hw_set_coverage_class(ah, coverage_class);
+	mutex_unlock(&ah->lock);
+}
+
+
+static int
+ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	if (tx_ant == 1 && rx_ant == 1)
+		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
+	else if (tx_ant == 2 && rx_ant == 2)
+		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
+	else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
+		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
+	else
+		return -EINVAL;
+	return 0;
+}
+
+
+static int
+ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	switch (ah->ah_ant_mode) {
+	case AR5K_ANTMODE_FIXED_A:
+		*tx_ant = 1; *rx_ant = 1; break;
+	case AR5K_ANTMODE_FIXED_B:
+		*tx_ant = 2; *rx_ant = 2; break;
+	case AR5K_ANTMODE_DEFAULT:
+		*tx_ant = 3; *rx_ant = 3; break;
+	}
+	return 0;
+}
+
+
+static void ath5k_get_ringparam(struct ieee80211_hw *hw,
+				u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
+{
+	struct ath5k_hw *ah = hw->priv;
+
+	*tx = ah->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max;
+
+	*tx_max = ATH5K_TXQ_LEN_MAX;
+	*rx = *rx_max = ATH_RXBUF;
+}
+
+
+static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx)
+{
+	struct ath5k_hw *ah = hw->priv;
+	u16 qnum;
+
+	/* only support setting tx ring size for now */
+	if (rx != ATH_RXBUF)
+		return -EINVAL;
+
+	/* restrict tx ring size min/max */
+	if (!tx || tx > ATH5K_TXQ_LEN_MAX)
+		return -EINVAL;
+
+	for (qnum = 0; qnum < ARRAY_SIZE(ah->txqs); qnum++) {
+		if (!ah->txqs[qnum].setup)
+			continue;
+		if (ah->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN ||
+		    ah->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX)
+			continue;
+
+		ah->txqs[qnum].txq_max = tx;
+		if (ah->txqs[qnum].txq_len >= ah->txqs[qnum].txq_max)
+			ieee80211_stop_queue(hw, ah->txqs[qnum].qnum);
+	}
+
+	return 0;
+}
+
+
+const struct ieee80211_ops ath5k_hw_ops = {
+	.tx			= ath5k_tx,
+	.wake_tx_queue		= ieee80211_handle_wake_tx_queue,
+	.start			= ath5k_start,
+	.stop			= ath5k_stop,
+	.add_interface		= ath5k_add_interface,
+	/* .change_interface	= not implemented */
+	.remove_interface	= ath5k_remove_interface,
+	.config			= ath5k_config,
+	.bss_info_changed	= ath5k_bss_info_changed,
+	.prepare_multicast	= ath5k_prepare_multicast,
+	.configure_filter	= ath5k_configure_filter,
+	/* .set_tim		= not implemented */
+	.set_key		= ath5k_set_key,
+	/* .update_tkip_key	= not implemented */
+	/* .hw_scan		= not implemented */
+	.sw_scan_start		= ath5k_sw_scan_start,
+	.sw_scan_complete	= ath5k_sw_scan_complete,
+	.get_stats		= ath5k_get_stats,
+	/* .set_frag_threshold	= not implemented */
+	/* .set_rts_threshold	= not implemented */
+	/* .sta_add		= not implemented */
+	/* .sta_remove		= not implemented */
+	/* .sta_notify		= not implemented */
+	.conf_tx		= ath5k_conf_tx,
+	.get_tsf		= ath5k_get_tsf,
+	.set_tsf		= ath5k_set_tsf,
+	.reset_tsf		= ath5k_reset_tsf,
+	/* .tx_last_beacon	= not implemented */
+	/* .ampdu_action	= not needed */
+	.get_survey		= ath5k_get_survey,
+	.set_coverage_class	= ath5k_set_coverage_class,
+	/* .rfkill_poll		= not implemented */
+	/* .flush		= not implemented */
+	/* .channel_switch	= not implemented */
+	/* .napi_poll		= not implemented */
+	.set_antenna		= ath5k_set_antenna,
+	.get_antenna		= ath5k_get_antenna,
+	.set_ringparam		= ath5k_set_ringparam,
+	.get_ringparam		= ath5k_get_ringparam,
+};