From patchwork Fri Jan 26 11:52:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kang Yang X-Patchwork-Id: 13532543 X-Patchwork-Delegate: kvalo@adurom.com Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 B7CACBA39 for ; Fri, 26 Jan 2024 12:36:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706272603; cv=none; b=kk/tJvl5T5mPGNPNs7uhRQPGv0NA6cBPKs1Me+PXhZ4E81L32z9W3CAjFo5A10JH49cW0SkFAnlQJNzcNKFOfue98cJJro0Mz1PHaE+AhBv5JxnHPGwf4NTDcndnJOOh1zPeRPbL0ngVfTsVtXKyxUotDxsxdOpNI8KDwmCa2RU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706272603; c=relaxed/simple; bh=MW6etxyQRB30dowAieGWhaOuXv6Zyu1oPZJ9C4CR9zI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EcTsTcCJcHtb6D85UdPxaymMIn9epNtXLCjsFHm9qvMlhJ5NWVvTT3X5GG3nphL3aTZfv9ylit6X69BBKRV5yw36cT7OM+ZezUqhbrZnhOGfL5LPAnq6LWAIo6rGskkp/QFIfEhkeXfReQS8F0kxWDHSKUWIjkhLmqoKsshj6II= 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=PWq2elz5; arc=none smtp.client-ip=205.220.168.131 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="PWq2elz5" Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40QBcuHS011287; Fri, 26 Jan 2024 11:52:56 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=J4JDdcP9SXcFzsAMGP4w8w1Dvwru6fB7HNDDojrBjEM=; b=PW q2elz5hYls6yPC+dtmiBjCdDNkRLQ7yiuQTE00s+eQecfrJufOTHwP3POmBrl/44 9Xwib/5YRV72zspXvnciM6b0WGYuxNZO346DtClg1YgBqjn93UygYddXWYykf/Wc Ag25F5sq+bfaWrV+OtTcKSQLwNvBDL4sXeEc/HWNGFmHx9NJg/AbD78jYIEue4gk QGrYfcdzQdNAdZ12Yk6Mp6WtnxqRDKqqf+LxtBg5XV0u1xNtVKDITXziy3HX5HHz HWQEU7H0IBI2Ne1w6Uc09ID6KVr390RYMKfIRDFJHc42C3Rzgh7xjZYuf6vqpuYy kW6Amd/hG46QAChN9kYw== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vv1019cwf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 11:52:56 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40QBqtJI005533 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 26 Jan 2024 11:52:55 GMT Received: from yk-E5440.qca.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 26 Jan 2024 03:52:54 -0800 From: Kang Yang To: CC: , Subject: [PATCH v4 04/11] wifi: ath12k: implement remain on channel for P2P mode Date: Fri, 26 Jan 2024 19:52:24 +0800 Message-ID: <20240126115231.356658-5-quic_kangyang@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240126115231.356658-1-quic_kangyang@quicinc.com> References: <20240126115231.356658-1-quic_kangyang@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 nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: TzzYpTe9lajACxCQoLmzoxcbZglg8VI_ X-Proofpoint-GUID: TzzYpTe9lajACxCQoLmzoxcbZglg8VI_ 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_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 mlxlogscore=999 adultscore=0 spamscore=0 clxscore=1015 phishscore=0 malwarescore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401260087 Implement remain on channel for p2p mode in ath12k_ops: ath12k_mac_op_remain_on_channel ath12k_mac_op_cancel_remain_on_channel P2P device can trigger ROC scan. Then keep listening or sending management frames on particular channels. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Kang Yang Acked-by: Jeff Johnson --- v4: no change. v3: use ath12k_ah_to_ar() to get ar. v2: 1. add Tested-on tag of QCN9274. 2. update copyright. --- drivers/net/wireless/ath/ath12k/core.c | 1 + drivers/net/wireless/ath/ath12k/mac.c | 119 +++++++++++++++++++++++++ drivers/net/wireless/ath/ath12k/wmi.c | 4 + 3 files changed, 124 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index 1baad3302157..ffe4fd6e36f5 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -950,6 +950,7 @@ static void ath12k_core_pre_reconfigure_recovery(struct ath12k_base *ab) ath12k_mac_drain_tx(ar); complete(&ar->scan.started); complete(&ar->scan.completed); + complete(&ar->scan.on_channel); complete(&ar->peer_assoc_done); complete(&ar->peer_delete_done); complete(&ar->install_key_done); diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index 0b8eab9656ed..366bb5e5934b 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -7391,6 +7391,122 @@ static void ath12k_mac_op_sta_statistics(struct ieee80211_hw *hw, sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); } +static int ath12k_mac_op_cancel_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ath12k_hw *ah = ath12k_hw_to_ah(hw); + struct ath12k *ar; + + ar = ath12k_ah_to_ar(ah); + + mutex_lock(&ar->conf_mutex); + + spin_lock_bh(&ar->data_lock); + ar->scan.roc_notify = false; + spin_unlock_bh(&ar->data_lock); + + ath12k_scan_abort(ar); + + mutex_unlock(&ar->conf_mutex); + + cancel_delayed_work_sync(&ar->scan.timeout); + + return 0; +} + +static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_channel *chan, + int duration, + enum ieee80211_roc_type type) +{ + struct ath12k_hw *ah = ath12k_hw_to_ah(hw); + struct ath12k *ar; + struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif); + struct ath12k_wmi_scan_req_arg arg; + int ret; + u32 scan_time_msec; + + ar = ath12k_ah_to_ar(ah); + + mutex_lock(&ar->conf_mutex); + spin_lock_bh(&ar->data_lock); + switch (ar->scan.state) { + case ATH12K_SCAN_IDLE: + reinit_completion(&ar->scan.started); + reinit_completion(&ar->scan.completed); + reinit_completion(&ar->scan.on_channel); + ar->scan.state = ATH12K_SCAN_STARTING; + ar->scan.is_roc = true; + ar->scan.vdev_id = arvif->vdev_id; + ar->scan.roc_freq = chan->center_freq; + ar->scan.roc_notify = true; + ret = 0; + break; + case ATH12K_SCAN_STARTING: + case ATH12K_SCAN_RUNNING: + case ATH12K_SCAN_ABORTING: + ret = -EBUSY; + break; + } + spin_unlock_bh(&ar->data_lock); + + if (ret) + goto exit; + + scan_time_msec = hw->wiphy->max_remain_on_channel_duration * 2; + + memset(&arg, 0, sizeof(arg)); + ath12k_wmi_start_scan_init(ar, &arg); + arg.num_chan = 1; + arg.chan_list = kcalloc(arg.num_chan, sizeof(*arg.chan_list), + GFP_KERNEL); + if (!arg.chan_list) { + ret = -ENOMEM; + goto exit; + } + + arg.vdev_id = arvif->vdev_id; + arg.scan_id = ATH12K_SCAN_ID; + arg.chan_list[0] = chan->center_freq; + arg.dwell_time_active = scan_time_msec; + arg.dwell_time_passive = scan_time_msec; + arg.max_scan_time = scan_time_msec; + arg.scan_flags |= WMI_SCAN_FLAG_PASSIVE; + arg.burst_duration = duration; + + ret = ath12k_start_scan(ar, &arg); + if (ret) { + ath12k_warn(ar->ab, "failed to start roc scan: %d\n", ret); + + spin_lock_bh(&ar->data_lock); + ar->scan.state = ATH12K_SCAN_IDLE; + spin_unlock_bh(&ar->data_lock); + goto free_chan_list; + } + + ret = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ); + if (ret == 0) { + ath12k_warn(ar->ab, "failed to switch to channel for roc scan\n"); + ret = ath12k_scan_stop(ar); + if (ret) + ath12k_warn(ar->ab, "failed to stop scan: %d\n", ret); + ret = -ETIMEDOUT; + goto free_chan_list; + } + + ieee80211_queue_delayed_work(hw, &ar->scan.timeout, + msecs_to_jiffies(duration)); + + ret = 0; + +free_chan_list: + kfree(arg.chan_list); +exit: + mutex_unlock(&ar->conf_mutex); + return ret; +} + static const struct ieee80211_ops ath12k_ops = { .tx = ath12k_mac_op_tx, .wake_tx_queue = ieee80211_handle_wake_tx_queue, @@ -7425,6 +7541,8 @@ static const struct ieee80211_ops ath12k_ops = { .get_survey = ath12k_mac_op_get_survey, .flush = ath12k_mac_op_flush, .sta_statistics = ath12k_mac_op_sta_statistics, + .remain_on_channel = ath12k_mac_op_remain_on_channel, + .cancel_remain_on_channel = ath12k_mac_op_cancel_remain_on_channel, }; static void ath12k_mac_update_ch_list(struct ath12k *ar, @@ -7952,6 +8070,7 @@ static void ath12k_mac_setup(struct ath12k *ar) init_completion(&ar->bss_survey_done); init_completion(&ar->scan.started); init_completion(&ar->scan.completed); + init_completion(&ar->scan.on_channel); INIT_DELAYED_WORK(&ar->scan.timeout, ath12k_scan_timeout_work); INIT_WORK(&ar->regd_update_work, ath12k_regd_update_work); diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index 7b48f8a2e397..c7e732c6c145 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -5050,6 +5050,8 @@ static void ath12k_wmi_event_scan_started(struct ath12k *ar) break; case ATH12K_SCAN_STARTING: ar->scan.state = ATH12K_SCAN_RUNNING; + if (ar->scan.is_roc) + ieee80211_ready_on_channel(ath12k_ar_to_hw(ar)); complete(&ar->scan.started); break; } @@ -5134,6 +5136,8 @@ static void ath12k_wmi_event_scan_foreign_chan(struct ath12k *ar, u32 freq) case ATH12K_SCAN_RUNNING: case ATH12K_SCAN_ABORTING: ar->scan_channel = ieee80211_get_channel(hw->wiphy, freq); + if (ar->scan.is_roc && ar->scan.roc_freq == freq) + complete(&ar->scan.on_channel); break; } }