From nobody Sat Nov 23 18:06:23 2024 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 7355E14E2DA; Tue, 19 Nov 2024 04:28:30 +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=1731990512; cv=none; b=W57vrs64/lJ0WD1fyBi6G8d/A5wDtcZG5QK353pJG1FaaoGhnXYxaDddmo1GG+T9t0RJOGLw0e07S9sA66r0ZHAJLppAxv/AQNox1ECMgM4jEgOejGKp+9JvE+lOM+cHu2DA3x8QW1kogrMFNPqieyJ1XOx0PKrxiaJsQT+TV9c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731990512; c=relaxed/simple; bh=Ai/qJ8g97geA07BRCNdNxXm1EmJ92IRz6KQ7oTIR/rM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=gkLcNdkMDuEAOvYWoec7gxMz6z6KS4EENb7BP1VknPZUVKVlEm0AD9HIZMY/JH26zyCrIR5lCMDCKTfWNyvCchpK2Djbvo/Idxk7qcDoeHhxIccRToq624Mfv0aX5lldxwixUrrILph+z9FurwntgmoTpnWhIYX6Zcs196TTMoI= 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=GhNnRXyB; 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="GhNnRXyB" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4AIGGmhl022573; Tue, 19 Nov 2024 04:28:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= Q+bfNasZwELhw3Tjkohr6bQw1hP1ghrC6uyW6hVjp44=; b=GhNnRXyBWycHS2Up raXKl2ptdKKSWTVkN1LDNYsxrmSpGJqMyoSpaxb2fCEqBoTKJKpm2HN4aRGU63/+ jFqml6d1YXGMzDq3qaRpG3LfmdR6sVX9pH7uwCecGDZ4XKn/MnFy6FeGr390+S6v /103Z0A9d/9ditxKcyg6XzC2meLhV+AnOo2SsjSswd4i9ffp8MFdwyyKY59yVc89 afzvg2k7iGYfHk4FOhZHsRgWlQFVIrlhV5pCuUDrfdOSiAvuZ1s2epFQ72FMwEvz KqUZkJyKWfJO6bJHdXvqP1KkMghtd1pCoYjY+R+fFsm24Q1LbJAcxeCANzcbnUlZ g5cwAw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4308y61c68-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Nov 2024 04:28:23 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4AJ4SMkp001047 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Nov 2024 04:28:22 GMT Received: from hu-adisi-blr.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 15.2.1544.9; Mon, 18 Nov 2024 20:28:20 -0800 From: Aditya Kumar Singh Date: Tue, 19 Nov 2024 09:57:59 +0530 Subject: [PATCH 1/2] wifi: mac80211: add EHT 320 MHz support for mesh Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20241119-mesh_320mhz_support-v1-1-f9463338d584@quicinc.com> References: <20241119-mesh_320mhz_support-v1-0-f9463338d584@quicinc.com> In-Reply-To: <20241119-mesh_320mhz_support-v1-0-f9463338d584@quicinc.com> To: Johannes Berg , Kalle Valo CC: , , Sathishkumar Muruganandam , Aditya Kumar Singh X-Mailer: b4 0.14.2 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: su3XLFhiPcEpgwDRbqvIrOtxnGc6qZkg X-Proofpoint-ORIG-GUID: su3XLFhiPcEpgwDRbqvIrOtxnGc6qZkg X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 mlxscore=0 mlxlogscore=924 impostorscore=0 bulkscore=0 suspectscore=0 phishscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411190034 From: Sathishkumar Muruganandam Currently, ieee80211_ie_build_he_oper() lacks support for 320 MHz handling (already noted as a TODO). This is because 320 MHz is not included in IEEE 802.11-ax. However, IEEE 802.11-be introduces 320 MHz support and if the chandef indicates a 320 MHz bandwidth and is used directly as it is, it will result in an incorrect HE Operation Information Element. In order to support EHT 320 MHz, HE Operation Element should indicate bandwidth as 160 MHz only. In EHT Operation IE, the correct bandwidth will be present. Devices capable of EHT can parse EHT Information Element and connect in 320 MHz and other HE capable devices can parse HE and can connect in 160 MHz. Add support to downgrade the bandwidth in ieee80211_ie_build_he_oper() during 320 MHz operation and advertise it. Signed-off-by: Sathishkumar Muruganandam Signed-off-by: Aditya Kumar Singh --- net/mac80211/util.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index a4e1301cc999d24d6ab1bd899742a2ff04229040..c88ce537aaa7ea5d59dc42e5f30= 805c6eb4a5c6d 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2762,6 +2762,7 @@ u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct = cfg80211_chan_def *chandef) { struct ieee80211_he_operation *he_oper; struct ieee80211_he_6ghz_oper *he_6ghz_op; + struct cfg80211_chan_def he_chandef; u32 he_oper_params; u8 ie_len =3D 1 + sizeof(struct ieee80211_he_operation); =20 @@ -2793,27 +2794,33 @@ u8 *ieee80211_ie_build_he_oper(u8 *pos, const struc= t cfg80211_chan_def *chandef) if (chandef->chan->band !=3D NL80211_BAND_6GHZ) goto out; =20 + cfg80211_chandef_create(&he_chandef, chandef->chan, NL80211_CHAN_NO_HT); + he_chandef.center_freq1 =3D chandef->center_freq1; + he_chandef.center_freq2 =3D chandef->center_freq2; + he_chandef.width =3D chandef->width; + /* TODO add VHT operational */ he_6ghz_op =3D (struct ieee80211_he_6ghz_oper *)pos; he_6ghz_op->minrate =3D 6; /* 6 Mbps */ he_6ghz_op->primary =3D - ieee80211_frequency_to_channel(chandef->chan->center_freq); + ieee80211_frequency_to_channel(he_chandef.chan->center_freq); he_6ghz_op->ccfs0 =3D - ieee80211_frequency_to_channel(chandef->center_freq1); - if (chandef->center_freq2) + ieee80211_frequency_to_channel(he_chandef.center_freq1); + if (he_chandef.center_freq2) he_6ghz_op->ccfs1 =3D - ieee80211_frequency_to_channel(chandef->center_freq2); + ieee80211_frequency_to_channel(he_chandef.center_freq2); else he_6ghz_op->ccfs1 =3D 0; =20 - switch (chandef->width) { + switch (he_chandef.width) { case NL80211_CHAN_WIDTH_320: - /* - * TODO: mesh operation is not defined over 6GHz 320 MHz - * channels. + /* Downgrade EHT 320 MHz BW to 160 MHz for HE and set new + * center_freq1 */ - WARN_ON(1); - break; + ieee80211_chandef_downgrade(&he_chandef, NULL); + he_6ghz_op->ccfs0 =3D + ieee80211_frequency_to_channel(he_chandef.center_freq1); + fallthrough; case NL80211_CHAN_WIDTH_160: /* Convert 160 MHz channel width to new style as interop * workaround. @@ -2821,7 +2828,7 @@ u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct = cfg80211_chan_def *chandef) he_6ghz_op->control =3D IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; he_6ghz_op->ccfs1 =3D he_6ghz_op->ccfs0; - if (chandef->chan->center_freq < chandef->center_freq1) + if (he_chandef.chan->center_freq < he_chandef.center_freq1) he_6ghz_op->ccfs0 -=3D 8; else he_6ghz_op->ccfs0 +=3D 8; --=20 2.34.1