From patchwork Mon Jan 9 11:07:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Greenman, Gregory" X-Patchwork-Id: 640827 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 56D59C5479D for ; Mon, 9 Jan 2023 11:07:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234827AbjAILHx (ORCPT ); Mon, 9 Jan 2023 06:07:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233491AbjAILHv (ORCPT ); Mon, 9 Jan 2023 06:07:51 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 27C06140BF for ; Mon, 9 Jan 2023 03:07:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1673262470; x=1704798470; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RvsjNi7NbUFnVCxXppfl98EHcVAStmHE96MUFuGfh6U=; b=WQeIBDvvWsfeB/cAzXI4nWq62234NirF2pcBAjaB/t0vrkPg6Zc6l55g QgYXpLo4q4skW8BI30E8lSEgPB0gGUhnqeNOuXBNt9hP1vf0BMRimbDTO AtOz4HA48YyOCJCCrAQ1nU6pkX1EOXTiN0hBjLj/Jz8buCQTu7+h+ubyi enE+1xRy5p/36kjVL5bz1HJWjW/kZsQg/t/UJEtxhmE1aPkKe1KiMD0SK fJzUxnBI0EHvjsErBhM86NuKFZ1vCnsa71nb/rckbUAwindEtvQJa/R6x tGlAbESxgsSDFm935VjQOp8JNlPVaqT0jHqYNTVp+WGvGDIOlfRh2N9vb Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10584"; a="387296441" X-IronPort-AV: E=Sophos;i="5.96,311,1665471600"; d="scan'208";a="387296441" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2023 03:07:49 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10584"; a="689003130" X-IronPort-AV: E=Sophos;i="5.96,311,1665471600"; d="scan'208";a="689003130" Received: from djacobi-mobl.ger.corp.intel.com (HELO ggreenma-mobl2.intel.com) ([10.251.191.194]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2023 03:07:48 -0800 From: gregory.greenman@intel.com To: kvalo@kernel.org, johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Johannes Berg , Gregory Greenman Subject: [PATCH 1/2] mac80211: support minimal EHT rate reporting on RX Date: Mon, 9 Jan 2023 13:07:21 +0200 Message-Id: <20230109130329.ead56028f756.Ide5d392e2918ff126439e0c8b868fd92f92ed015@changeid> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230109110722.212758-1-gregory.greenman@intel.com> References: <20230109110722.212758-1-gregory.greenman@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Add minimal support for RX EHT rate reporting, not yet adding (modifying) any radiotap headers, just statistics for cfg80211. Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman --- include/net/mac80211.h | 19 ++++++++++++++++--- net/mac80211/rx.c | 9 +++++++++ net/mac80211/sta_info.c | 9 ++++++++- net/mac80211/sta_info.h | 24 ++++++++++++++++++------ net/mac80211/util.c | 13 +++++++++++++ 5 files changed, 64 insertions(+), 10 deletions(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 689da327ce2e..759f5c9d3e0a 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1436,6 +1436,7 @@ enum mac80211_rx_encoding { RX_ENC_HT, RX_ENC_VHT, RX_ENC_HE, + RX_ENC_EHT, }; /** @@ -1469,7 +1470,7 @@ enum mac80211_rx_encoding { * @antenna: antenna used * @rate_idx: index of data rate into band's supported rates or MCS index if * HT or VHT is used (%RX_FLAG_HT/%RX_FLAG_VHT) - * @nss: number of streams (VHT and HE only) + * @nss: number of streams (VHT, HE and EHT only) * @flag: %RX_FLAG_\* * @encoding: &enum mac80211_rx_encoding * @bw: &enum rate_info_bw @@ -1477,6 +1478,8 @@ enum mac80211_rx_encoding { * @he_ru: HE RU, from &enum nl80211_he_ru_alloc * @he_gi: HE GI, from &enum nl80211_he_gi * @he_dcm: HE DCM value + * @eht.ru: EHT RU, from &enum nl80211_eht_ru_alloc + * @eht.gi: EHT GI, from &enum nl80211_eht_gi * @rx_flags: internal RX flags for mac80211 * @ampdu_reference: A-MPDU reference number, must be a different value for * each A-MPDU but the same for each subframe within one A-MPDU @@ -1498,8 +1501,18 @@ struct ieee80211_rx_status { u32 flag; u16 freq: 13, freq_offset: 1; u8 enc_flags; - u8 encoding:2, bw:3, he_ru:3; - u8 he_gi:2, he_dcm:1; + u8 encoding:3, bw:4; + union { + struct { + u8 he_ru:3; + u8 he_gi:2; + u8 he_dcm:1; + }; + struct { + u8 ru:4; + u8 gi:2; + } eht; + }; u8 rate_idx; u8 nss; u8 rx_flags; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7e3ab6e1b28f..a4243a6e0446 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -5215,6 +5215,15 @@ void ieee80211_rx_list(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, status->rate_idx, status->nss)) goto drop; break; + case RX_ENC_EHT: + if (WARN_ONCE(status->rate_idx > 15 || + !status->nss || + status->nss > 8 || + status->eht.gi > NL80211_RATE_INFO_EHT_GI_3_2, + "Rate marked as an EHT rate but data is invalid: MCS:%d, NSS:%d, GI:%d\n", + status->rate_idx, status->nss, status->eht.gi)) + goto drop; + break; default: WARN_ON_ONCE(1); fallthrough; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 04e0f132b1d9..27c737fe7fb8 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -4,7 +4,7 @@ * Copyright 2006-2007 Jiri Benc * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2015 - 2017 Intel Deutschland GmbH - * Copyright (C) 2018-2021 Intel Corporation + * Copyright (C) 2018-2022 Intel Corporation */ #include @@ -2406,6 +2406,13 @@ static void sta_stats_decode_rate(struct ieee80211_local *local, u32 rate, rinfo->he_ru_alloc = STA_STATS_GET(HE_RU, rate); rinfo->he_dcm = STA_STATS_GET(HE_DCM, rate); break; + case STA_STATS_RATE_TYPE_EHT: + rinfo->flags = RATE_INFO_FLAGS_EHT_MCS; + rinfo->mcs = STA_STATS_GET(EHT_MCS, rate); + rinfo->nss = STA_STATS_GET(EHT_NSS, rate); + rinfo->eht_gi = STA_STATS_GET(EHT_GI, rate); + rinfo->eht_ru_alloc = STA_STATS_GET(EHT_RU, rate); + break; } } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 69820b551668..c30f02874fb1 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -936,6 +936,7 @@ enum sta_stats_type { STA_STATS_RATE_TYPE_VHT, STA_STATS_RATE_TYPE_HE, STA_STATS_RATE_TYPE_S1G, + STA_STATS_RATE_TYPE_EHT, }; #define STA_STATS_FIELD_HT_MCS GENMASK( 7, 0) @@ -945,12 +946,16 @@ enum sta_stats_type { #define STA_STATS_FIELD_VHT_NSS GENMASK( 7, 4) #define STA_STATS_FIELD_HE_MCS GENMASK( 3, 0) #define STA_STATS_FIELD_HE_NSS GENMASK( 7, 4) -#define STA_STATS_FIELD_BW GENMASK(11, 8) -#define STA_STATS_FIELD_SGI GENMASK(12, 12) -#define STA_STATS_FIELD_TYPE GENMASK(15, 13) -#define STA_STATS_FIELD_HE_RU GENMASK(18, 16) -#define STA_STATS_FIELD_HE_GI GENMASK(20, 19) -#define STA_STATS_FIELD_HE_DCM GENMASK(21, 21) +#define STA_STATS_FIELD_EHT_MCS GENMASK( 3, 0) +#define STA_STATS_FIELD_EHT_NSS GENMASK( 7, 4) +#define STA_STATS_FIELD_BW GENMASK(12, 8) +#define STA_STATS_FIELD_SGI GENMASK(13, 13) +#define STA_STATS_FIELD_TYPE GENMASK(16, 14) +#define STA_STATS_FIELD_HE_RU GENMASK(19, 17) +#define STA_STATS_FIELD_HE_GI GENMASK(21, 20) +#define STA_STATS_FIELD_HE_DCM GENMASK(22, 22) +#define STA_STATS_FIELD_EHT_RU GENMASK(20, 17) +#define STA_STATS_FIELD_EHT_GI GENMASK(22, 21) #define STA_STATS_FIELD(_n, _v) FIELD_PREP(STA_STATS_FIELD_ ## _n, _v) #define STA_STATS_GET(_n, _v) FIELD_GET(STA_STATS_FIELD_ ## _n, _v) @@ -989,6 +994,13 @@ static inline u32 sta_stats_encode_rate(struct ieee80211_rx_status *s) r |= STA_STATS_FIELD(HE_RU, s->he_ru); r |= STA_STATS_FIELD(HE_DCM, s->he_dcm); break; + case RX_ENC_EHT: + r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_EHT); + r |= STA_STATS_FIELD(EHT_NSS, s->nss); + r |= STA_STATS_FIELD(EHT_MCS, s->rate_idx); + r |= STA_STATS_FIELD(EHT_GI, s->eht.gi); + r |= STA_STATS_FIELD(EHT_RU, s->eht.ru); + break; default: WARN_ON(1); return STA_STATS_RATE_INVALID; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 6f5407038459..c2fce5a20cbd 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -4069,6 +4069,19 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, /* Fill cfg80211 rate info */ switch (status->encoding) { + case RX_ENC_EHT: + ri.flags |= RATE_INFO_FLAGS_EHT_MCS; + ri.mcs = status->rate_idx; + ri.nss = status->nss; + ri.eht_ru_alloc = status->eht.ru; + if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) + ri.flags |= RATE_INFO_FLAGS_SHORT_GI; + /* TODO/FIXME: is this right? handle other PPDUs */ + if (status->flag & RX_FLAG_MACTIME_PLCP_START) { + mpdu_offset += 2; + ts += 36; + } + break; case RX_ENC_HE: ri.flags |= RATE_INFO_FLAGS_HE_MCS; ri.mcs = status->rate_idx;