From patchwork Fri Jan 12 09:28:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kang Yang X-Patchwork-Id: 762461 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 23DA75D91E for ; Fri, 12 Jan 2024 09:28:49 +0000 (UTC) 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="fDB5KviV" 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 40C5FiQ6032640; Fri, 12 Jan 2024 09:28:45 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=ZP22UOvjM92n7sGptLsFk1nVeY9M85suF25jgSXxAxs=; b=fD B5KviVYzRm17eNzGmb8kEwfxptm+Y3bYAegAZ2aO+EZTSwgkFGapMszrusQBAVS4 V76/Y+LjuRtR8MaimkNFvPksWtwoS1iocTB87pnDIHN9ZonivkSDjfC32yu6CYir +wyC/Z/N1iVkX0c514KuoDLeJd73qruMKdaRfvbj3Z6GbtwvBefAiNps6lfGGeN3 vpfDnWE+I7AynMCwpwofjng9xEgwri5oIQtoE0gsIx2zI821bJbC0I9EY0QyjcJ5 QbQGeIiiqRIWrpROYq+/0b/oQNZ+hvFiZPyP8BZNUdNnVcIEKzF3P7ph3oiUAo9h g61par5aeUkHGFjyKsRQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vjxm60sqn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 Jan 2024 09:28:45 +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 40C9Sirl021342 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 Jan 2024 09:28:44 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, 12 Jan 2024 01:28:43 -0800 From: Kang Yang To: CC: , Subject: [PATCH v2 04/10] wifi: ath12k: implement remain on channel for P2P mode Date: Fri, 12 Jan 2024 17:28:18 +0800 Message-ID: <20240112092824.7664-5-quic_kangyang@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240112092824.7664-1-quic_kangyang@quicinc.com> References: <20240112092824.7664-1-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: gMp-Kg_hV-wwqyOO2QvTy20YGoedbyTJ X-Proofpoint-GUID: gMp-Kg_hV-wwqyOO2QvTy20YGoedbyTJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 clxscore=1015 spamscore=0 mlxscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 phishscore=0 suspectscore=0 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401120072 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 --- v2: 1. add Tested-on tag of QCN9274. 2. update copyright. -- drivers/net/wireless/ath/ath12k/core.c | 3 +- drivers/net/wireless/ath/ath12k/mac.c | 113 +++++++++++++++++++++++++ drivers/net/wireless/ath/ath12k/wmi.c | 4 + 3 files changed, 119 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index d73e2d33a41e..d030534a3ef0 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #include @@ -942,6 +942,7 @@ 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 a4a00a6606b4..92ba88d5e4e9 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -7193,6 +7193,116 @@ 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 *ar = hw->priv; + + 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 *ar = hw->priv; + struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif); + struct ath12k_wmi_scan_req_arg arg; + int ret; + u32 scan_time_msec; + + 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 = ar->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(ar->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, @@ -7227,6 +7337,8 @@ 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, @@ -7777,6 +7889,7 @@ int ath12k_mac_allocate(struct ath12k_base *ab) 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 861565eaab3d..e10289de84c1 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(ar->hw); complete(&ar->scan.started); break; } @@ -5132,6 +5134,8 @@ 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(ar->hw->wiphy, freq); + if (ar->scan.is_roc && ar->scan.roc_freq == freq) + complete(&ar->scan.on_channel); break; } }