From patchwork Mon May 4 17:05:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamizh chelvam X-Patchwork-Id: 11526769 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 446F71668 for ; Mon, 4 May 2020 17:07:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2AD7920721 for ; Mon, 4 May 2020 17:07:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="I/iqlZYl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729861AbgEDRHK (ORCPT ); Mon, 4 May 2020 13:07:10 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:49700 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729930AbgEDRHJ (ORCPT ); Mon, 4 May 2020 13:07:09 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588612029; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=1v4FzGS58NB4/ttumhbZ7Z1UsATJOWCKhmmhp4YmwLU=; b=I/iqlZYlkaA2+U5SFIgov4/77fg0Qaokc4pGyeSyhXAX2GFpz/A3g6N+raXICPrvaYdn36ik 4LFdTMeomU5nMa6YS6Z0L+TMU/DLZ/6sjKFpW6W0Ey+4O+o0CRn/YPfinefooDYJKn7pvi+q ECrfIBtW9Ly1ZHzH+EgTMcDV0H4= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eb04baf.7fea8dbcc618-smtp-out-n01; Mon, 04 May 2020 17:06:55 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id A66A1C433CB; Mon, 4 May 2020 17:06:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=ham autolearn_force=no version=3.4.0 Received: from cheath10p342229-lin.qca.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tamizhr) by smtp.codeaurora.org (Postfix) with ESMTPSA id 189FFC432C2; Mon, 4 May 2020 17:06:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 189FFC432C2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=tamizhr@codeaurora.org From: Tamizh Chelvam To: ath11k@lists.infradead.org, johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Tamizh Chelvam Subject: [PATCH 2/2] ath11k: Add peer max mpdu parameter in peer assoc command Date: Mon, 4 May 2020 22:35:00 +0530 Message-Id: <1588611900-21185-2-git-send-email-tamizhr@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1588611900-21185-1-git-send-email-tamizhr@codeaurora.org> References: <1588611900-21185-1-git-send-email-tamizhr@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add peer max mpdu length configuration support in peer_assoc_he parameters. Noticed low throughput for the STA which supports HE, HT and not VHT in MU-MIMO case without this configuration Signed-off-by: Tamizh Chelvam --- drivers/net/wireless/ath/ath11k/mac.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index f33c6d7..88e533c 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -1161,6 +1161,7 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, struct peer_assoc_params *arg) { const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; + u8 ampdu_factor; u16 v; if (!he_cap->has_he) @@ -1178,6 +1179,30 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, /* the top most byte is used to indicate BSS color info */ arg->peer_he_ops &= 0xffffff; + /* As per section 26.6.1 11ax Draft5.0, if the Max AMPDU Exponent Extension + * in HE cap is zero, use the arg->peer_max_mpdu as calculated while parsing + * VHT caps(if VHT caps is present) or HT caps (if VHT caps is not present). + * + * For non-zero value of Max AMPDU Extponent Extension in HE MAC caps, + * if a HE STA sends VHT cap and HE cap IE in assoc request then, use + * MAX_AMPDU_LEN_FACTOR as 20 to calculate max_ampdu length. + * If a HE STA that does not send VHT cap, but HE and HT cap in assoc + * request, then use MAX_AMPDU_LEN_FACTOR as 16 to calculate max_ampdu + * length. + */ + ampdu_factor = (he_cap->he_cap_elem.mac_cap_info[3] & + IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) >> + IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_SHIFT; + + if (ampdu_factor) { + if (sta->vht_cap.vht_supported) + arg->peer_max_mpdu = (1 << (IEEE80211_HE_VHT_MAX_AMPDU_FACTOR + + ampdu_factor)) - 1; + else if (sta->ht_cap.ht_supported) + arg->peer_max_mpdu = (1 << (IEEE80211_HE_HT_MAX_AMPDU_FACTOR + + ampdu_factor)) - 1; + } + if (he_cap->he_cap_elem.phy_cap_info[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { int bit = 7;