From patchwork Thu Jan 11 16:17:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Korenblit, Miriam Rachel" X-Patchwork-Id: 762701 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) (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 2C091524A9 for ; Thu, 11 Jan 2024 16:18:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eBV/vYNn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704989917; x=1736525917; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=z47WlOXTNUwEXDcjM0DqyhjTFBulX484RA3i1S1YXxc=; b=eBV/vYNni7FjoY83hqqt6QrHHp7DkQO2ELX/z4KcMK2HE9mEPqSovLju IUA3tePkoEK7iioYNSnXynm/1RwUTg1EaeDBU/WttREGdDQppmyQkz4aH OYEttVqq/C6fKUU6KTPnXuOCpPQUUB7x14oEjc0THi+AZbIjorRC6TEPv p+nm3g3B5LHLEUj9oGFEkJDaPFP/77WydCQSuH6evq8TEO0YSXoXhq37u J+Cr9fvNlG2bTayT2tO4EVSZP3NO+hO2/uvOqpDS+pjeM95FzF5NVyT6B 0EEGWuh5H1+Stc3eaXg7/ITFSY/xQLBne/q19Yw5O+2OyfinSwH3us4iA w==; X-IronPort-AV: E=McAfee;i="6600,9927,10950"; a="463182600" X-IronPort-AV: E=Sophos;i="6.04,186,1695711600"; d="scan'208";a="463182600" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2024 08:18:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10950"; a="1029606692" X-IronPort-AV: E=Sophos;i="6.04,186,1695711600"; d="scan'208";a="1029606692" Received: from unknown (HELO WEIS0040.iil.intel.com) ([10.12.217.108]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2024 08:18:34 -0800 From: Miri Korenblit To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Johannes Berg , Gregory Greenman Subject: [PATCH 5/8] wifi: mac80211: disallow drivers with HT wider than HE Date: Thu, 11 Jan 2024 18:17:43 +0200 Message-Id: <20240111181514.da15fe3214d2.I4df51ad2f4c844615c168bf9bdb498925b3c77d4@changeid> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240111161746.3978601-1-miriam.rachel.korenblit@intel.com> References: <20240111161746.3978601-1-miriam.rachel.korenblit@intel.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Israel (74) Limited From: Johannes Berg To simplify the code in the next patch, disallow drivers supporting 40 MHz in HT but not HE, since we'd otherwise have to track local maximum bandwidth per mode there. Signed-off-by: Johannes Berg Reviewed-by: Gregory Greenman Signed-off-by: Miri Korenblit --- net/mac80211/main.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index d48fa1147c14..e05bcc35bc1e 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1119,8 +1119,26 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_vht = supp_vht || sband->vht_cap.vht_supported; for_each_sband_iftype_data(sband, i, iftd) { + u8 he_40_mhz_cap; + supp_he = supp_he || iftd->he_cap.has_he; supp_eht = supp_eht || iftd->eht_cap.has_eht; + + if (sband->band == NL80211_BAND_2GHZ) + he_40_mhz_cap = + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; + else + he_40_mhz_cap = + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G; + + /* currently no support for HE client where HT has 40 MHz but not HT */ + if (iftd->he_cap.has_he && + iftd->types_mask & (BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_CLIENT)) && + sband->ht_cap.ht_supported && + sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && + !(iftd->he_cap.he_cap_elem.phy_cap_info[0] & he_40_mhz_cap)) + return -EINVAL; } /* HT, VHT, HE require QoS, thus >= 4 queues */