From patchwork Sun Mar 5 12:16:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Greenman, Gregory" X-Patchwork-Id: 659714 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 09671C6FA8E for ; Sun, 5 Mar 2023 12:17:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229633AbjCEMR4 (ORCPT ); Sun, 5 Mar 2023 07:17:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229642AbjCEMRy (ORCPT ); Sun, 5 Mar 2023 07:17:54 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2E18126E6 for ; Sun, 5 Mar 2023 04:17:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678018666; x=1709554666; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=IXzwdXPm3u2r9rFuoTR9QZOD49pBq5BrOexQ/9YBeKk=; b=mpIXPL4qpyBvBSQe7D4gcPzeXKaIKewPN9OLxWUFa9ySIBK8Qw6PaeW7 yybk2lwbYOtida0L1y9NyIoEmA0C026a2HMfKR60miiopcJUuo9B/4Uv7 NuUmLkOwo9JukmwnQNnG/Cl02cE4Fxrl4PzmSjDnKzBIRnLxg7JDnpatQ jy8DDTSQxDcHYFww4c+Fa5DDEiKTote7+zuTr23DiI1C0dAQ+eGCHsfzJ hHdSSJgUbHRUwupeJHDm1hrcITCrveRlyBVZnE5JlvPvAzquUX6FEioYE sZ66Wn01m+e3L0WJ5edk2KR1DBJx6iZS3oLGlbRLdw3hd3/Vckxtt475U g==; X-IronPort-AV: E=McAfee;i="6500,9779,10639"; a="400193300" X-IronPort-AV: E=Sophos;i="5.98,235,1673942400"; d="scan'208";a="400193300" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Mar 2023 04:17:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10639"; a="708355237" X-IronPort-AV: E=Sophos;i="5.98,235,1673942400"; d="scan'208";a="708355237" Received: from hsaid-mobl2.ger.corp.intel.com (HELO ggreenma-mobl2.intel.com) ([10.249.80.12]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Mar 2023 04:17:42 -0800 From: gregory.greenman@intel.com To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Ilan Peer , Gregory Greenman Subject: [PATCH 20/21] wifi: iwlwifi: Do not include radiotap EHT user info if not needed Date: Sun, 5 Mar 2023 14:16:34 +0200 Message-Id: <20230305124407.ac6474ded9bd.I9655589e9afbacc16820f35f6f5d90c6a91b8b05@changeid> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230305121635.301451-1-gregory.greenman@intel.com> References: <20230305121635.301451-1-gregory.greenman@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Ilan Peer Do not include user information in radtiotap EHT data for EHT sounding NDP as the frame doesn't include the user specific field. Instead, encode the NSS and the beamforming information in the EHT data. Signed-off-by: Ilan Peer Signed-off-by: Gregory Greenman --- drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 56 ++++++++++++------- 1 file changed, 36 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index a54548f1e940..d8dda72a5a5d 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -1839,6 +1839,7 @@ static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_radiotap_eht *eht; struct ieee80211_radiotap_eht_usig *usig; + size_t eht_len = sizeof(*eht); u32 rate_n_flags = phy_data->rate_n_flags; u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK; @@ -1848,8 +1849,10 @@ static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb, u32 bw; /* u32 for 1 user_info */ - eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, - sizeof(*eht) + sizeof(u32)); + if (phy_data->with_data) + eht_len += sizeof(u32); + + eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, eht_len); usig = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT_USIG, sizeof(*usig)); @@ -1939,26 +1942,39 @@ static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb, rx_status->eht.gi)); } - eht->user_info[0] |= cpu_to_le32 - (IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN | - IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN | - IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O | - IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O | - IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER); - - if (rate_n_flags & RATE_MCS_BF_MSK) - eht->user_info[0] |= - cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O); - if (rate_n_flags & RATE_MCS_LDPC_MSK) + if (!phy_data->with_data) { + eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NSS_S | + IEEE80211_RADIOTAP_EHT_KNOWN_BEAMFORMED_S); + eht->data[7] |= + le32_encode_bits(le32_get_bits(phy_data->rx_vec[2], + RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK), + IEEE80211_RADIOTAP_EHT_DATA7_NSS_S); + if (rate_n_flags & RATE_MCS_BF_MSK) + eht->data[7] |= + cpu_to_le32(IEEE80211_RADIOTAP_EHT_DATA7_BEAMFORMED_S); + } else { eht->user_info[0] |= - cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING); - - eht->user_info[0] |= cpu_to_le32 - (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS, - FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK, rate_n_flags)) | - FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O, - FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags))); + cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN | + IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN | + IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O | + IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O | + IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER); + + if (rate_n_flags & RATE_MCS_BF_MSK) + eht->user_info[0] |= + cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O); + + if (rate_n_flags & RATE_MCS_LDPC_MSK) + eht->user_info[0] |= + cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING); + + eht->user_info[0] |= cpu_to_le32 + (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS, + FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK, rate_n_flags)) | + FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O, + FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags))); + } } static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,