From patchwork Thu Jan 25 05:50:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aditya Kumar Singh X-Patchwork-Id: 766854 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBC0910976 for ; Thu, 25 Jan 2024 05:51:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706161875; cv=none; b=gf1uUEKC+RN4KDkQvGPGEtSM0LHABPTejux2ZDjpm6nBPuw8Iqn7TE7Syk6r3D8FWOHuCEixQIvqzE/ELaJDhXmnJzJkc8d5yWzjHFHNLnoAHjSlpitUxpFEZ3lzdCjf40o6nk/29wYt9HjR0zdt6upwTrRrlGheSy1Q41gNuN8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706161875; c=relaxed/simple; bh=5QepPuJzhr9TTHCJXSK1ygQQDfpNv6bXMBAGBPPlyf0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=RdmYha2k38oIVRR3R2wuZ3uMaeNaNXmHMjfVGyFZazgZOo3CqXSKhTcpj7Q3KleEBO2HG0Lp0kgwCuofyXqOAaYMeU9L7kNh3Lu3fOI+FwTycg13xr/Unre4KfAFQ44B/yZ6degqNpCezeGwioi+pDVqXmnvzXmngzmKmL7jbSw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=KSOJycNZ; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="KSOJycNZ" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40P1CBux023691; Thu, 25 Jan 2024 05:51:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=YGljMK4ZaBm2EN9md4j41ZNDRfXnMMZP9RSHNllg9dE=; b=KS OJycNZG7QCG+7cNwPt5DYJeEgfZ310d5Z4PmDU8A0LOtbLAEeIT/5vegGpMnRswV 8bkODKhd70nKDAbyOCWDq0C6/VSIIg1yHkTE727DPtF//974xsyCbQRn37h8RtYz 0dL420Ns9xoGX3zQ0Ct6xOcJ17OhB1yTe901H5Fe286FLgAC8vdMGIdFNLaJwzW0 MdPgRx7/aopjbztdJAekNkfLdlw7MIHI56zeidfMhoQBJGAcVnQfRDJ2WmhWwlQO tw9pdPkdaE0YmJBAzXpBSf03ejA74sh6Pm9H2pDMMztubXbdrXqOnst7ZtnhwWul RgivENinPVJ/5oWArAQQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vu19gj8a2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 25 Jan 2024 05:51:07 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40P5p6lp025409 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 25 Jan 2024 05:51:06 GMT Received: from cdcwlex322514-lin.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 24 Jan 2024 21:51:04 -0800 From: Aditya Kumar Singh To: CC: , Aditya Kumar Singh Subject: [PATCH v4 2/3] wifi: mac80211: add support for AP channel switch with MLO Date: Thu, 25 Jan 2024 11:20:38 +0530 Message-ID: <20240125055039.826200-3-quic_adisi@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240125055039.826200-1-quic_adisi@quicinc.com> References: <20240125055039.826200-1-quic_adisi@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Ae4v4mtgST2Hnnvlvu6QZO8Dib6y8jz6 X-Proofpoint-ORIG-GUID: Ae4v4mtgST2Hnnvlvu6QZO8Dib6y8jz6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_02,2024-01-24_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 malwarescore=0 clxscore=1015 mlxlogscore=999 spamscore=0 phishscore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401250037 Currently, during channel switch, deflink (or link_id 0) is always considered. However, with Multi-Link Operation (MLO), there is a need to handle link specific data structures based on the actual operational link_id during channel switch operation. Hence, add support for the same. Non-MLO based operations will use link_id as 0 or deflink member as applicable Signed-off-by: Aditya Kumar Singh --- drivers/net/wireless/ath/ath10k/mac.c | 2 +- drivers/net/wireless/ath/ath10k/wmi.c | 2 +- drivers/net/wireless/ath/ath11k/wmi.c | 2 +- drivers/net/wireless/ath/ath12k/wmi.c | 2 +- drivers/net/wireless/ath/ath9k/beacon.c | 2 +- .../net/wireless/ath/ath9k/htc_drv_beacon.c | 2 +- .../net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 4 +- .../wireless/intel/iwlwifi/mvm/time-event.c | 2 +- .../net/wireless/marvell/mwifiex/cfg80211.c | 3 +- drivers/net/wireless/mediatek/mt76/mac80211.c | 2 +- .../net/wireless/mediatek/mt76/mt7615/mcu.c | 2 +- .../net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +- .../net/wireless/mediatek/mt76/mt7996/mcu.c | 2 +- drivers/net/wireless/ti/wlcore/event.c | 2 +- drivers/net/wireless/virtual/mac80211_hwsim.c | 2 +- include/net/mac80211.h | 3 +- net/mac80211/cfg.c | 110 +++++++++++------- 17 files changed, 87 insertions(+), 59 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 090bcf148d0c..07c5c51ff7b2 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -2047,7 +2047,7 @@ static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif) ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n", ret); } else { - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } } diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 88befe92f95d..7ba3ef805fc5 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -3885,7 +3885,7 @@ void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb) */ if (arvif->vif->bss_conf.csa_active && ieee80211_beacon_cntdwn_is_complete(arvif->vif)) { - ieee80211_csa_finish(arvif->vif); + ieee80211_csa_finish(arvif->vif, 0); continue; } diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index 8a65fa04b48d..3944a4d2e4d2 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -8267,7 +8267,7 @@ ath11k_wmi_process_csa_switch_count_event(struct ath11k_base *ab, } if (arvif->is_up && arvif->vif->bss_conf.csa_active) - ieee80211_csa_finish(arvif->vif); + ieee80211_csa_finish(arvif->vif, 0); } rcu_read_unlock(); } diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index 11cc3005c0f9..d505aa8c2225 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -6446,7 +6446,7 @@ ath12k_wmi_process_csa_switch_count_event(struct ath12k_base *ab, } if (arvif->is_up && arvif->vif->bss_conf.csa_active) - ieee80211_csa_finish(arvif->vif); + ieee80211_csa_finish(arvif->vif, 0); } rcu_read_unlock(); } diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index ee72faac2f1d..4e48407138b2 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -368,7 +368,7 @@ bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif) if (!ieee80211_beacon_cntdwn_is_complete(vif)) return false; - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); return true; } diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c index 533471e69400..8179d35dc310 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c @@ -517,7 +517,7 @@ bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv) if (!ieee80211_beacon_cntdwn_is_complete(vif)) return false; - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); priv->csa_vif = NULL; return true; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index c4f96125cf33..3b6819f75430 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -1486,7 +1486,7 @@ static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, } } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { /* we don't have CSA NoA scheduled yet, switch now */ - ieee80211_csa_finish(csa_vif); + ieee80211_csa_finish(csa_vif, 0); RCU_INIT_POINTER(mvm->csa_vif, NULL); } } @@ -1832,7 +1832,7 @@ void iwl_mvm_channel_switch_start_notif(struct iwl_mvm *mvm, msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * csa_vif->bss_conf.beacon_int)); - ieee80211_csa_finish(csa_vif); + ieee80211_csa_finish(csa_vif, 0); rcu_read_unlock(); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c index 218fdf1ed530..b2f9771ae713 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c @@ -168,7 +168,7 @@ static void iwl_mvm_csa_noa_start(struct iwl_mvm *mvm) goto out_unlock; } - ieee80211_csa_finish(csa_vif); + ieee80211_csa_finish(csa_vif, 0); rcu_read_unlock(); diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index b909a7665e9c..ab8862ceaa27 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -3963,7 +3963,8 @@ mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, static int mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, - struct cfg80211_csa_settings *params) + struct cfg80211_csa_settings *params, + unsigned int link_id) { struct ieee_types_header *chsw_ie; struct ieee80211_channel_sw_ie *channel_sw; diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 8a3a90d1bfac..8bf82755ca4c 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -1614,7 +1614,7 @@ static void __mt76_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif) { if (vif->bss_conf.csa_active && ieee80211_beacon_cntdwn_is_complete(vif)) - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } void mt76_csa_finish(struct mt76_dev *dev) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index ae34d019e588..c807bd8d928d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -353,7 +353,7 @@ static void mt7615_mcu_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif) { if (vif->bss_conf.csa_active) - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } static void diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index c67c4f6ca2aa..f1522c7f0597 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -228,7 +228,7 @@ mt7915_mcu_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif) if (!vif->bss_conf.csa_active || vif->type == NL80211_IFTYPE_STATION) return; - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } static void diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index 3c729b563edc..0eeaf428179b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -341,7 +341,7 @@ mt7996_mcu_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif) if (!vif->bss_conf.csa_active || vif->type == NL80211_IFTYPE_STATION) return; - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } static void diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c index 1e082d039b82..2499dc908305 100644 --- a/drivers/net/wireless/ti/wlcore/event.c +++ b/drivers/net/wireless/ti/wlcore/event.c @@ -233,7 +233,7 @@ void wlcore_event_channel_switch(struct wl1271 *wl, cancel_delayed_work(&wlvif->channel_switch_work); } else { set_bit(WLVIF_FLAG_BEACON_DISABLED, &wlvif->flags); - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, 0); } } } diff --git a/drivers/net/wireless/virtual/mac80211_hwsim.c b/drivers/net/wireless/virtual/mac80211_hwsim.c index a84340c2075f..a410ecdca6d1 100644 --- a/drivers/net/wireless/virtual/mac80211_hwsim.c +++ b/drivers/net/wireless/virtual/mac80211_hwsim.c @@ -2285,7 +2285,7 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, } if (link_conf->csa_active && ieee80211_beacon_cntdwn_is_complete(vif)) - ieee80211_csa_finish(vif); + ieee80211_csa_finish(vif, link_id); } static enum hrtimer_restart diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d400fe2e8668..850053ed2366 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -5482,12 +5482,13 @@ void ieee80211_beacon_set_cntdwn(struct ieee80211_vif *vif, u8 counter); /** * ieee80211_csa_finish - notify mac80211 about channel switch * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * @link_id: valid link_id during MLO or 0 for non-MLO * * After a channel switch announcement was scheduled and the counter in this * announcement hits 1, this function must be called by the driver to * notify mac80211 that the channel can be changed. */ -void ieee80211_csa_finish(struct ieee80211_vif *vif); +void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id); /** * ieee80211_beacon_cntdwn_is_complete - find out if countdown reached 1 diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 489dd97f5172..a5d1c7b043db 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1588,6 +1588,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, link->csa_block_tx = false; } + wiphy_work_cancel(wiphy, &link->csa_finalize_work); + ieee80211_free_next_beacon(link); /* turn off carrier for this interface and dependent VLANs */ @@ -3540,13 +3542,24 @@ cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) return new_beacon; } -void ieee80211_csa_finish(struct ieee80211_vif *vif) +void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_local *local = sdata->local; + struct ieee80211_link_data *link_data; + + if (WARN_ON(link_id > IEEE80211_MLD_MAX_NUM_LINKS)) + return; rcu_read_lock(); + link_data = rcu_dereference(sdata->link[link_id]); + if (WARN_ON(!link_data)) { + rcu_read_unlock(); + return; + } + + /* TODO: MBSSID with MLO changes */ if (vif->mbssid_tx_vif == vif) { /* Trigger ieee80211_csa_finish() on the non-transmitting * interfaces when channel switch is received on @@ -3565,7 +3578,7 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif) &iter->deflink.csa_finalize_work); } } - wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work); + wiphy_work_queue(local->hw.wiphy, &link_data->csa_finalize_work); rcu_read_unlock(); } @@ -3583,20 +3596,21 @@ void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_t } EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); -static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, +static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, u64 *changed) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; int err; switch (sdata->vif.type) { case NL80211_IFTYPE_AP: - if (!sdata->deflink.u.ap.next_beacon) + if (!link_data->u.ap.next_beacon) return -EINVAL; - err = ieee80211_assign_beacon(sdata, &sdata->deflink, - sdata->deflink.u.ap.next_beacon, + err = ieee80211_assign_beacon(sdata, link_data, + link_data->u.ap.next_beacon, NULL, NULL, changed); - ieee80211_free_next_beacon(&sdata->deflink); + ieee80211_free_next_beacon(link_data); if (err < 0) return err; @@ -3625,6 +3639,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) { struct ieee80211_sub_if_data *sdata = link_data->sdata; struct ieee80211_local *local = sdata->local; + struct ieee80211_bss_conf *link_conf = link_data->conf; u64 changed = 0; int err; @@ -3646,22 +3661,21 @@ static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) if (link_data->reserved_ready) return 0; - return ieee80211_link_use_reserved_context(&sdata->deflink); + return ieee80211_link_use_reserved_context(link_data); } - if (!cfg80211_chandef_identical(&link_data->conf->chandef, + if (!cfg80211_chandef_identical(&link_conf->chandef, &link_data->csa_chandef)) return -EINVAL; - sdata->vif.bss_conf.csa_active = false; + link_conf->csa_active = false; - err = ieee80211_set_after_csa_beacon(sdata, &changed); + err = ieee80211_set_after_csa_beacon(link_data, &changed); if (err) return err; - if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { - sdata->vif.bss_conf.eht_puncturing = - sdata->vif.bss_conf.csa_punct_bitmap; + if (link_conf->eht_puncturing != link_conf->csa_punct_bitmap) { + link_conf->eht_puncturing = link_conf->csa_punct_bitmap; changed |= BSS_CHANGED_EHT_PUNCTURING; } @@ -3689,7 +3703,8 @@ static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) struct ieee80211_sub_if_data *sdata = link_data->sdata; if (__ieee80211_csa_finalize(link_data)) { - sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); + sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", + link_data->link_id); cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, GFP_KERNEL); } @@ -3714,18 +3729,19 @@ void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) ieee80211_csa_finalize(link); } -static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, +static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, struct cfg80211_csa_settings *params, u64 *changed) { + struct ieee80211_sub_if_data *sdata = link_data->sdata; struct ieee80211_csa_settings csa = {}; int err; switch (sdata->vif.type) { case NL80211_IFTYPE_AP: - sdata->deflink.u.ap.next_beacon = + link_data->u.ap.next_beacon = cfg80211_beacon_dup(¶ms->beacon_after); - if (!sdata->deflink.u.ap.next_beacon) + if (!link_data->u.ap.next_beacon) return -ENOMEM; /* @@ -3751,7 +3767,7 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || (params->n_counter_offsets_presp > IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { - ieee80211_free_next_beacon(&sdata->deflink); + ieee80211_free_next_beacon(link_data); return -EINVAL; } @@ -3761,11 +3777,11 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, csa.n_counter_offsets_presp = params->n_counter_offsets_presp; csa.count = params->count; - err = ieee80211_assign_beacon(sdata, &sdata->deflink, + err = ieee80211_assign_beacon(sdata, link_data, ¶ms->beacon_csa, &csa, NULL, changed); if (err < 0) { - ieee80211_free_next_beacon(&sdata->deflink); + ieee80211_free_next_beacon(link_data); return err; } @@ -3864,7 +3880,10 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel_switch ch_switch; struct ieee80211_chanctx_conf *conf; struct ieee80211_chanctx *chanctx; + struct ieee80211_bss_conf *link_conf; + struct ieee80211_link_data *link_data; u64 changed = 0; + u8 link_id = params->link_id; int err; lockdep_assert_wiphy(local->hw.wiphy); @@ -3875,16 +3894,23 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, if (sdata->wdev.cac_started) return -EBUSY; - if (cfg80211_chandef_identical(¶ms->chandef, - &sdata->vif.bss_conf.chandef)) + if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) + return -EINVAL; + + link_data = wiphy_dereference(wiphy, sdata->link[link_id]); + if (!link_data) + return -ENOLINK; + + link_conf = link_data->conf; + + if (cfg80211_chandef_identical(¶ms->chandef, &link_conf->chandef)) return -EINVAL; /* don't allow another channel switch if one is already active. */ - if (sdata->vif.bss_conf.csa_active) + if (link_conf->csa_active) return -EBUSY; - conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, - lockdep_is_held(&local->hw.wiphy->mtx)); + conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); if (!conf) { err = -EBUSY; goto out; @@ -3908,7 +3934,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, if (err) goto out; - err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, + err = ieee80211_link_reserve_chanctx(link_data, ¶ms->chandef, chanctx->mode, params->radar_required); if (err) @@ -3917,44 +3943,44 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, /* if reservation is invalid then this will fail */ err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); if (err) { - ieee80211_link_unreserve_chanctx(&sdata->deflink); + ieee80211_link_unreserve_chanctx(link_data); goto out; } /* if there is a color change in progress, abort it */ - if (sdata->vif.bss_conf.color_change_active) + if (link_conf->color_change_active) ieee80211_color_change_abort(sdata); - err = ieee80211_set_csa_beacon(sdata, params, &changed); + err = ieee80211_set_csa_beacon(link_data, params, &changed); if (err) { - ieee80211_link_unreserve_chanctx(&sdata->deflink); + ieee80211_link_unreserve_chanctx(link_data); goto out; } - if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) + if (params->punct_bitmap && link_conf->eht_support) goto out; - sdata->deflink.csa_chandef = params->chandef; - sdata->deflink.csa_block_tx = params->block_tx; - sdata->vif.bss_conf.csa_active = true; - sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; + link_data->csa_chandef = params->chandef; + link_data->csa_block_tx = params->block_tx; + link_conf->csa_active = true; + link_conf->csa_punct_bitmap = params->punct_bitmap; - if (sdata->deflink.csa_block_tx) + if (link_data->csa_block_tx) ieee80211_stop_vif_queues(local, sdata, IEEE80211_QUEUE_STOP_REASON_CSA); cfg80211_ch_switch_started_notify(sdata->dev, - &sdata->deflink.csa_chandef, 0, + &link_data->csa_chandef, link_id, params->count, params->block_tx, - sdata->vif.bss_conf.csa_punct_bitmap); + link_conf->csa_punct_bitmap); if (changed) { - ieee80211_link_info_change_notify(sdata, &sdata->deflink, - changed); + ieee80211_link_info_change_notify(sdata, link_data, changed); + /* link_id to be passed here? */ drv_channel_switch_beacon(sdata, ¶ms->chandef); } else { /* if the beacon didn't change, we can finalize immediately */ - ieee80211_csa_finalize(&sdata->deflink); + ieee80211_csa_finalize(link_data); } out: