From patchwork Fri Aug 19 21:46:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jes Sorensen X-Patchwork-Id: 9291163 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9C043607FF for ; Fri, 19 Aug 2016 21:47:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 91B3A295B3 for ; Fri, 19 Aug 2016 21:47:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 86456295B5; Fri, 19 Aug 2016 21:47:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3C018295B3 for ; Fri, 19 Aug 2016 21:47:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755716AbcHSVri (ORCPT ); Fri, 19 Aug 2016 17:47:38 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43644 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755481AbcHSVrY (ORCPT ); Fri, 19 Aug 2016 17:47:24 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9856681229; Fri, 19 Aug 2016 21:46:45 +0000 (UTC) Received: from ultrasam.trained-monkey.org (ovpn-116-161.phx2.redhat.com [10.3.116.161]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u7JLkiOM024971; Fri, 19 Aug 2016 17:46:45 -0400 Received: from carbonite.redhat.com (localhost.localdomain [127.0.0.1]) by ultrasam.trained-monkey.org (Postfix) with ESMTP id E6FA71821350A; Fri, 19 Aug 2016 17:46:43 -0400 (EDT) From: Jes.Sorensen@redhat.com To: linux-wireless@vger.kernel.org Cc: kvalo@codeaurora.org, Larry.Finger@lwfinger.net, Jes Sorensen Subject: [PATCH 16/20] rtl8xxxu: Determine the need for SGI before handling specific TX desc formats Date: Fri, 19 Aug 2016 17:46:38 -0400 Message-Id: <1471643202-26250-17-git-send-email-Jes.Sorensen@redhat.com> In-Reply-To: <1471643202-26250-1-git-send-email-Jes.Sorensen@redhat.com> References: <1471643202-26250-1-git-send-email-Jes.Sorensen@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Fri, 19 Aug 2016 21:46:45 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jes Sorensen In order to be able to split out the TX descriptor handling code, determine in advance the need to mark SGI. Signed-off-by: Jes Sorensen --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 2f951cf..6dc3f52 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4770,7 +4770,7 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, u16 rate_flag = tx_info->control.rates[0].flags; int tx_desc_size = priv->fops->tx_desc_size; int ret; - bool usedesc40, ampdu_enable; + bool usedesc40, ampdu_enable, sgi = false; if (skb_headroom(skb) < tx_desc_size) { dev_warn(dev, @@ -4854,6 +4854,12 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, else rate = tx_rate->hw_value; + if (rate_flag & IEEE80211_TX_RC_SHORT_GI || + (ieee80211_is_data_qos(hdr->frame_control) && + sta && sta->ht_cap.cap & + (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20))) + sgi = true; + seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); if (!usedesc40) { tx_desc->txdw5 = cpu_to_le32(rate); @@ -4886,12 +4892,8 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, (sta && vif && vif->bss_conf.use_short_preamble)) tx_desc->txdw4 |= cpu_to_le32(TXDESC32_SHORT_PREAMBLE); - if (rate_flag & IEEE80211_TX_RC_SHORT_GI || - (ieee80211_is_data_qos(hdr->frame_control) && - sta && sta->ht_cap.cap & - (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20))) { + if (sgi) tx_desc->txdw5 |= cpu_to_le32(TXDESC32_SHORT_GI); - } if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { /*