From patchwork Thu Dec 22 12:05:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Youghandhar Chintala X-Patchwork-Id: 636290 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83946C001B2 for ; Thu, 22 Dec 2022 12:13:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235572AbiLVMNQ (ORCPT ); Thu, 22 Dec 2022 07:13:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235923AbiLVMMs (ORCPT ); Thu, 22 Dec 2022 07:12:48 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B9062A257; Thu, 22 Dec 2022 04:06:06 -0800 (PST) Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BMBgKKG029667; Thu, 22 Dec 2022 12:06:01 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=4Hkgp5mqnwYGMLAnV4qH/U21gdaKpSgaflWbxhX8fhk=; b=i4AIf7Ln2nUYREgWb1El9wsi1MN42tqFZ6mfIoZ57dOXx3N30GdWjXW0BfhiirMUBJ2N /Z8WTxpRedYe2oQAmvb3dvrUvKJ4R4te4Bb4CMeOyRvo7wAZJ07WXTWJx4kWi3X1MdiQ D3G6A6JGcxlOc0dnujBs/S1002FSJrMtl+xEnvNZKlcZgjitVkyWuIhYsf156jQTDmEN deRukSTObphB65g6LcJTG6SAvIeuDMhulZv+UznJljv8L6L2QfNOYpviY4Vy2D5B7Jua //En4WxpRyHMUtY4K3mglVvooFdZ7kSGrXA5lkzkPFn8r50PzurdLGNLr5oXTmZyNpTj qw== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3mm5r2j2w0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 22 Dec 2022 12:06:01 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BMC60oa001475 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 22 Dec 2022 12:06:00 GMT Received: from youghand-linux.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 15.2.986.36; Thu, 22 Dec 2022 04:05:57 -0800 From: Youghandhar Chintala To: , CC: , , , Youghandhar Chintala Subject: [PATCH 1/2] wifi: cfg80211: Add beacon hint notifier support Date: Thu, 22 Dec 2022 17:35:28 +0530 Message-ID: <20221222120529.31436-2-quic_youghand@quicinc.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221222120529.31436-1-quic_youghand@quicinc.com> References: <20221222120529.31436-1-quic_youghand@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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: x-quFhhuAkG9eYOoadHmqgUEGsV82GBY X-Proofpoint-ORIG-GUID: x-quFhhuAkG9eYOoadHmqgUEGsV82GBY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-22_06,2022-12-22_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 mlxlogscore=999 malwarescore=0 bulkscore=0 impostorscore=0 spamscore=0 clxscore=1015 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212220105 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org There are connection failures in hidden SSID case when the device is with default reg domain WW. For WW reg domain most of the 5 GHz channels are passive. When device listens to the beacon on that channel, the driver is updating its channel flag but firmware is not aware of it and firmware is not sending probes on that channels. Due to this, we are seeing connection failures when the device is trying to connect with hidden SSID AP. In the case of devices using the ath10k driver, it is required to update the change in channel flags to firmware as well. Therefore, we need a mechanism to notify the driver from the regulatory core regarding the channel flag changes. Adding a beacon hint notifier logic, so that drivers can register callbacks to get notified whenever there is a change in channel flags. Signed-off-by: Youghandhar Chintala --- include/net/cfg80211.h | 2 ++ net/wireless/reg.c | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 11a370e64143..07b2f2da77d6 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5386,6 +5386,8 @@ struct wiphy { void (*reg_notifier)(struct wiphy *wiphy, struct regulatory_request *request); + void (*beacon_hint_notifier)(struct wiphy *wiphy); + /* fields below are read-only, assigned by cfg80211 */ const struct ieee80211_regdomain __rcu *regd; diff --git a/net/wireless/reg.c b/net/wireless/reg.c index c3d950d29432..6ea2455d4964 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2219,8 +2219,11 @@ static void handle_reg_beacon(struct wiphy *wiphy, unsigned int chan_idx, channel_changed = true; } - if (channel_changed) + if (channel_changed) { nl80211_send_beacon_hint_event(wiphy, &chan_before, chan); + if (wiphy->beacon_hint_notifier) + wiphy->beacon_hint_notifier(wiphy); + } } /*