From patchwork Fri Dec 7 13:27:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislaw Gruszka X-Patchwork-Id: 10718133 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-2.web.codeaurora.org (Postfix) with ESMTP id B46F017DB for ; Fri, 7 Dec 2018 13:27:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A3E2B294C2 for ; Fri, 7 Dec 2018 13:27:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 97F1B2E535; Fri, 7 Dec 2018 13:27:26 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 1EA5D294C2 for ; Fri, 7 Dec 2018 13:27:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726132AbeLGN1Z (ORCPT ); Fri, 7 Dec 2018 08:27:25 -0500 Received: from mx1.redhat.com ([209.132.183.28]:49792 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726120AbeLGN1Z (ORCPT ); Fri, 7 Dec 2018 08:27:25 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E006AC049D7A; Fri, 7 Dec 2018 13:27:24 +0000 (UTC) Received: from localhost (unknown [10.43.2.211]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6F9325EDE0; Fri, 7 Dec 2018 13:27:21 +0000 (UTC) From: Stanislaw Gruszka To: Felix Fietkau Cc: linux-wireless@vger.kernel.org, Lorenzo Bianconi Subject: [PATCH 3/5] mt76x02: set protection according to ht operation element Date: Fri, 7 Dec 2018 14:27:09 +0100 Message-Id: <1544189231-3676-3-git-send-email-sgruszka@redhat.com> In-Reply-To: <1544189231-3676-1-git-send-email-sgruszka@redhat.com> References: <1544189231-3676-1-git-send-email-sgruszka@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Fri, 07 Dec 2018 13:27:24 +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 Configure protection based on information that are provided to us either by remote AP or by hostapd via HT operation IE. Signed-off-by: Stanislaw Gruszka --- drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 83 +++++++++++++++++++++++ drivers/net/wireless/mediatek/mt76/mt76x02_mac.h | 2 + drivers/net/wireless/mediatek/mt76/mt76x02_regs.h | 1 + drivers/net/wireless/mediatek/mt76/mt76x02_util.c | 4 ++ 4 files changed, 90 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index 9693d6140b3d..3fc7a722ea53 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -731,6 +731,89 @@ void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val) MT_PROT_CFG_CTRL | MT_PROT_CFG_RTS_THRESH, data); } +void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot, + int ht_mode) +{ + int mode = ht_mode & IEEE80211_HT_OP_MODE_PROTECTION; + bool non_gf = !!(ht_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); + u32 prot[6]; + u32 vht_prot[3]; + int i; + u16 rts_thr; + + for (i = 0; i < ARRAY_SIZE(prot); i++) { + prot[i] = mt76_rr(dev, MT_CCK_PROT_CFG + i * 4); + prot[i] &= ~MT_PROT_CFG_CTRL; + if (i >= 2) + prot[i] &= ~MT_PROT_CFG_RATE; + } + + for (i = 0; i < ARRAY_SIZE(vht_prot); i++) { + vht_prot[i] = mt76_rr(dev, MT_TX_PROT_CFG6 + i * 4); + vht_prot[i] &= ~(MT_PROT_CFG_CTRL | MT_PROT_CFG_RATE); + } + + rts_thr = mt76_get_field(dev, MT_TX_RTS_CFG, MT_TX_RTS_CFG_THRESH); + + if (rts_thr != 0xffff) + prot[0] |= MT_PROT_CTRL_RTS_CTS; + + if (legacy_prot) { + prot[1] |= MT_PROT_CTRL_CTS2SELF; + + prot[2] |= MT_PROT_RATE_CCK_11; + prot[3] |= MT_PROT_RATE_CCK_11; + prot[4] |= MT_PROT_RATE_CCK_11; + prot[5] |= MT_PROT_RATE_CCK_11; + + vht_prot[0] |= MT_PROT_RATE_CCK_11; + vht_prot[1] |= MT_PROT_RATE_CCK_11; + vht_prot[2] |= MT_PROT_RATE_CCK_11; + } else { + if (rts_thr != 0xffff) + prot[1] |= MT_PROT_CTRL_RTS_CTS; + + prot[2] |= MT_PROT_RATE_OFDM_24; + prot[3] |= MT_PROT_RATE_DUP_OFDM_24; + prot[4] |= MT_PROT_RATE_OFDM_24; + prot[5] |= MT_PROT_RATE_DUP_OFDM_24; + + vht_prot[0] |= MT_PROT_RATE_OFDM_24; + vht_prot[1] |= MT_PROT_RATE_DUP_OFDM_24; + vht_prot[2] |= MT_PROT_RATE_SGI_OFDM_24; + } + + switch (mode) { + case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: + case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: + prot[2] |= MT_PROT_CTRL_RTS_CTS; + prot[3] |= MT_PROT_CTRL_RTS_CTS; + prot[4] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[0] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[1] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[2] |= MT_PROT_CTRL_RTS_CTS; + break; + case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: + prot[3] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[1] |= MT_PROT_CTRL_RTS_CTS; + vht_prot[2] |= MT_PROT_CTRL_RTS_CTS; + break; + } + + if (non_gf) { + prot[4] |= MT_PROT_CTRL_RTS_CTS; + prot[5] |= MT_PROT_CTRL_RTS_CTS; + } + + for (i = 0; i < ARRAY_SIZE(prot); i++) + mt76_wr(dev, MT_CCK_PROT_CFG + i * 4, prot[i]); + + for (i = 0; i < ARRAY_SIZE(vht_prot); i++) + mt76_wr(dev, MT_TX_PROT_CFG6 + i * 4, vht_prot[i]); +} + void mt76x02_update_channel(struct mt76_dev *mdev) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h index d1a8ed171537..91c76a050f7e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.h @@ -194,6 +194,8 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev, struct mt76x02_tx_status *stat, u8 *update); int mt76x02_mac_process_rx(struct mt76x02_dev *dev, struct sk_buff *skb, void *rxi); +void mt76x02_mac_set_tx_protection(struct mt76x02_dev *dev, bool legacy_prot, + int ht_mode); void mt76x02_mac_set_rts_thresh(struct mt76x02_dev *dev, u32 val); void mt76x02_mac_setaddr(struct mt76x02_dev *dev, u8 *addr); void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h b/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h index d1ac847adce5..20ad07638699 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_regs.h @@ -443,6 +443,7 @@ #define MT_PROT_RATE_OFDM_6 0x2000 #define MT_PROT_RATE_OFDM_24 0x2004 #define MT_PROT_RATE_DUP_OFDM_24 0x2084 +#define MT_PROT_RATE_SGI_OFDM_24 0x2104 #define MT_PROT_TXOP_ALLOW_ALL GENMASK(25, 20) #define MT_PROT_TXOP_ALLOW_BW20 (MT_PROT_TXOP_ALLOW_ALL & \ ~MT_PROT_TXOP_ALLOW_MM40 & \ diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c index e7ee2cc76edf..e6f3de0d2a4b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c @@ -661,6 +661,10 @@ void mt76x02_bss_info_changed(struct ieee80211_hw *hw, tasklet_enable(&dev->pre_tbtt_tasklet); } + if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) + mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, + info->ht_operation_mode); + if (changed & BSS_CHANGED_BEACON_INT) { mt76_rmw_field(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_INTVAL,