From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/net/wireless/ath/ath9k/htc_drv_beacon.c | 524 ++++++++++++++++++++++++ 1 file changed, 524 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/htc_drv_beacon.c (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_beacon.c') 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; +} -- cgit v1.2.3