From patchwork Thu Aug 17 08:01:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shayne Chen X-Patchwork-Id: 13356097 X-Patchwork-Delegate: nbd@nbd.name 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 B5E85C2FC1C for ; Thu, 17 Aug 2023 08:03:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348701AbjHQICf (ORCPT ); Thu, 17 Aug 2023 04:02:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348729AbjHQIC2 (ORCPT ); Thu, 17 Aug 2023 04:02:28 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 692872D76 for ; Thu, 17 Aug 2023 01:02:20 -0700 (PDT) X-UUID: 5fafd34e3cd411ee9cb5633481061a41-20230817 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=rD3xJ0P94qLm1F151Mrvluh9HiJKqb72Cl07WlFf+b0=; b=TU+/1o5rzKYJsWvxmjVFxs7RLFMpfHhbhTh/yUh9Ty79jQUuoEdXPnh0szDuThOstCrRbD2blYMVrVVyiYqvg1/PEic5UxW2IDyozNlls81mZ78GMsyPqcv82kkZNEhYhjE/3eYlxYBNv3dK5hVRrZpEwIF6MAJ9zu4wXq0QOwM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.31,REQID:f79bca73-4b76-4dd6-a190-5c2af617d7b7,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:0ad78a4,CLOUDID:3084f5c1-1e57-4345-9d31-31ad9818b39f,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 5fafd34e3cd411ee9cb5633481061a41-20230817 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1832990785; Thu, 17 Aug 2023 16:02:13 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 17 Aug 2023 16:02:12 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 17 Aug 2023 16:02:11 +0800 From: Shayne Chen To: Felix Fietkau CC: linux-wireless , Lorenzo Bianconi , Ryder Lee , Evelyn Tsai , Bo Jiao , linux-mediatek , Howard Hsu , MeiChia Chiu , Shayne Chen Subject: [PATCH 8/9] wifi: mt76: mt7996: support more options for mt7996_set_bitrate_mask() Date: Thu, 17 Aug 2023 16:01:53 +0800 Message-ID: <20230817080154.16475-8-shayne.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230817080154.16475-1-shayne.chen@mediatek.com> References: <20230817080154.16475-1-shayne.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Howard Hsu Add support to configure parameters at runtime, such as mcs, gi, and he_ltf. Note that EHT mode does not support this feature yet. Co-developed-by: MeiChia Chiu Signed-off-by: MeiChia Chiu Signed-off-by: Howard Hsu Signed-off-by: Shayne Chen --- .../net/wireless/mediatek/mt76/mt7996/mcu.c | 135 +++++++++++++++++- 1 file changed, 133 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index b0e6f51041fd..3b56b90bb956 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -1624,6 +1624,132 @@ int mt7996_mcu_set_fixed_rate_ctrl(struct mt7996_dev *dev, MCU_WM_UNI_CMD(RA), true); } +static int +mt7996_mcu_set_fixed_field(struct mt7996_dev *dev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta, void *data, u32 field) +{ + struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; + struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; + struct sta_phy *phy = data; + struct sta_rec_ra_fixed *ra; + struct sk_buff *skb; + struct tlv *tlv; + + skb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mvif->mt76, + &msta->wcid, + MT7996_STA_UPDATE_MAX_SIZE); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_RA_UPDATE, sizeof(*ra)); + ra = (struct sta_rec_ra_fixed *)tlv; + + switch (field) { + case RATE_PARAM_AUTO: + break; + case RATE_PARAM_FIXED: + case RATE_PARAM_FIXED_MCS: + case RATE_PARAM_FIXED_GI: + case RATE_PARAM_FIXED_HE_LTF: + if (phy) + ra->phy = *phy; + break; + default: + break; + } + ra->field = cpu_to_le32(field); + + return mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true); +} + +static int +mt7996_mcu_add_rate_ctrl_fixed(struct mt7996_dev *dev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; + struct cfg80211_chan_def *chandef = &mvif->phy->mt76->chandef; + struct cfg80211_bitrate_mask *mask = &mvif->bitrate_mask; + enum nl80211_band band = chandef->chan->band; + struct sta_phy phy = {}; + int ret, nrates = 0; + +#define __sta_phy_bitrate_mask_check(_mcs, _gi, _ht, _he) \ + do { \ + u8 i, gi = mask->control[band]._gi; \ + gi = (_he) ? gi : gi == NL80211_TXRATE_FORCE_SGI; \ + phy.sgi = gi; \ + phy.he_ltf = mask->control[band].he_ltf; \ + for (i = 0; i < ARRAY_SIZE(mask->control[band]._mcs); i++) { \ + if (!mask->control[band]._mcs[i]) \ + continue; \ + nrates += hweight16(mask->control[band]._mcs[i]); \ + phy.mcs = ffs(mask->control[band]._mcs[i]) - 1; \ + if (_ht) \ + phy.mcs += 8 * i; \ + } \ + } while (0) + + if (sta->deflink.he_cap.has_he) { + __sta_phy_bitrate_mask_check(he_mcs, he_gi, 0, 1); + } else if (sta->deflink.vht_cap.vht_supported) { + __sta_phy_bitrate_mask_check(vht_mcs, gi, 0, 0); + } else if (sta->deflink.ht_cap.ht_supported) { + __sta_phy_bitrate_mask_check(ht_mcs, gi, 1, 0); + } else { + nrates = hweight32(mask->control[band].legacy); + phy.mcs = ffs(mask->control[band].legacy) - 1; + } +#undef __sta_phy_bitrate_mask_check + + /* fall back to auto rate control */ + if (mask->control[band].gi == NL80211_TXRATE_DEFAULT_GI && + mask->control[band].he_gi == GENMASK(7, 0) && + mask->control[band].he_ltf == GENMASK(7, 0) && + nrates != 1) + return 0; + + /* fixed single rate */ + if (nrates == 1) { + ret = mt7996_mcu_set_fixed_field(dev, vif, sta, &phy, + RATE_PARAM_FIXED_MCS); + if (ret) + return ret; + } + + /* fixed GI */ + if (mask->control[band].gi != NL80211_TXRATE_DEFAULT_GI || + mask->control[band].he_gi != GENMASK(7, 0)) { + struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; + u32 addr; + + /* firmware updates only TXCMD but doesn't take WTBL into + * account, so driver should update here to reflect the + * actual txrate hardware sends out. + */ + addr = mt7996_mac_wtbl_lmac_addr(dev, msta->wcid.idx, 7); + if (sta->deflink.he_cap.has_he) + mt76_rmw_field(dev, addr, GENMASK(31, 24), phy.sgi); + else + mt76_rmw_field(dev, addr, GENMASK(15, 12), phy.sgi); + + ret = mt7996_mcu_set_fixed_field(dev, vif, sta, &phy, + RATE_PARAM_FIXED_GI); + if (ret) + return ret; + } + + /* fixed HE_LTF */ + if (mask->control[band].he_ltf != GENMASK(7, 0)) { + ret = mt7996_mcu_set_fixed_field(dev, vif, sta, &phy, + RATE_PARAM_FIXED_HE_LTF); + if (ret) + return ret; + } + + return 0; +} + static void mt7996_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7996_dev *dev, struct ieee80211_vif *vif, struct ieee80211_sta *sta) @@ -1733,6 +1859,7 @@ int mt7996_mcu_add_rate_ctrl(struct mt7996_dev *dev, struct ieee80211_vif *vif, struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; struct sk_buff *skb; + int ret; skb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mvif->mt76, &msta->wcid, @@ -1752,8 +1879,12 @@ int mt7996_mcu_add_rate_ctrl(struct mt7996_dev *dev, struct ieee80211_vif *vif, */ mt7996_mcu_sta_rate_ctrl_tlv(skb, dev, vif, sta); - return mt76_mcu_skb_send_msg(&dev->mt76, skb, - MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true); + ret = mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true); + if (ret) + return ret; + + return mt7996_mcu_add_rate_ctrl_fixed(dev, vif, sta); } static int