From patchwork Fri Apr 10 22:51:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 11483763 X-Patchwork-Delegate: nbd@nbd.name 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 5231B1805 for ; Fri, 10 Apr 2020 22:52:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C88A2084D for ; Fri, 10 Apr 2020 22:52:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="QRdHKppx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726786AbgDJWwD (ORCPT ); Fri, 10 Apr 2020 18:52:03 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:5495 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726774AbgDJWwC (ORCPT ); Fri, 10 Apr 2020 18:52:02 -0400 X-UUID: 460c0c6e447d4ed19702cdd9b50f14e6-20200411 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=f5kQlwPF4iuq2MyeYNdnk1RWMKmEndEWIG76IKKWz2k=; b=QRdHKppxWM6Uv78nFNrivnr7qnaDyhO2k/cBk+CeRbx6JImy88uFbHiWW16TAabYnMYhot087yi84BPnQyjNOOrwHg63d/tz8X/uixN/hBLoRGJslx25k9vGJy8Qj54A8Nm1w85sbSSmzVXMalj5fdG3D5QEkPBFd9/4QWegua0=; X-UUID: 460c0c6e447d4ed19702cdd9b50f14e6-20200411 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1998969611; Sat, 11 Apr 2020 06:51:58 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 11 Apr 2020 06:51:52 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 11 Apr 2020 06:51:52 +0800 From: Ryder Lee To: Felix Fietkau , Lorenzo Bianconi CC: Shayne Chen , YF Luo , Yiwei Chung , Chih-Min Chen , Evelyn Tsai , Sean Wang , , , Ryder Lee Subject: [PATCH v1 15/16] mt76: mt7915: set peer Tx fixed rate through debugfs Date: Sat, 11 Apr 2020 06:51:30 +0800 Message-ID: <4c58f4af64d93ac4980d6b0651563d85c3035909.1586558901.git.ryder.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Driver can manually set fixed rate for each peer through debugfs. May use .set_bitrate_mask callback and iterate stations under the current vif to achieve the aim once it supports HE rate. Signed-off-by: Ryder Lee Signed-off-by: Shayne Chen --- .../wireless/mediatek/mt76/mt7915/debugfs.c | 13 ++++++ .../net/wireless/mediatek/mt76/mt7915/mcu.c | 46 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7915/mcu.h | 28 +++++++++++ .../wireless/mediatek/mt76/mt7915/mt7915.h | 2 + 4 files changed, 89 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c index 27f523d69618..181f42fcdeda 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c @@ -302,6 +302,18 @@ int mt7915_init_debugfs(struct mt7915_dev *dev) /** per-station debugfs **/ +/* usage: */ +static int mt7915_sta_fixed_rate_set(void *data, u64 rate) +{ + struct ieee80211_sta *sta = data; + struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; + + return mt7915_mcu_set_fixed_rate(msta->vif->dev, sta, rate); +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL, + mt7915_sta_fixed_rate_set, "%llx\n"); + static int mt7915_sta_stats_read(struct seq_file *s, void *data) { @@ -362,5 +374,6 @@ static const struct file_operations fops_sta_stats = { void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir) { + debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate); debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats); } diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index e6e4405f5766..3905d0d2ce8a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -1768,6 +1768,52 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif, return 0; } +int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev, + struct ieee80211_sta *sta, u32 rate) +{ + struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; + struct mt7915_vif *mvif = msta->vif; + struct sta_rec_ra_fixed *ra; + struct sk_buff *skb; + struct tlv *tlv; + + skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta, + MT7915_STA_UPDATE_MAX_SIZE); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + tlv = mt7915_mcu_add_tlv(skb, STA_REC_RA_UPDATE, sizeof(*ra)); + ra = (struct sta_rec_ra_fixed *)tlv; + + if (!rate) { + ra->field = cpu_to_le32(RATE_PARAM_AUTO); + goto out; + } else { + ra->field = cpu_to_le32(RATE_PARAM_FIXED); + } + + ra->phy.type = FIELD_GET(RATE_CFG_PHY_TYPE, rate); + ra->phy.bw = FIELD_GET(RATE_CFG_BW, rate); + ra->phy.nss = FIELD_GET(RATE_CFG_NSS, rate); + ra->phy.mcs = FIELD_GET(RATE_CFG_MCS, rate); + ra->phy.stbc = FIELD_GET(RATE_CFG_STBC, rate); + + if (ra->phy.bw) + ra->phy.ldpc = 7; + else + ra->phy.ldpc = FIELD_GET(RATE_CFG_LDPC, rate) * 7; + + /* HT/VHT - SGI: 1, LGI: 0; HE - SGI: 0, MGI: 1, LGI: 2 */ + if (ra->phy.type > MT_PHY_TYPE_VHT) + ra->phy.sgi = ra->phy.mcs * 85; + else + ra->phy.sgi = ra->phy.mcs * 15; + +out: + return __mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_EXT_CMD_STA_REC_UPDATE, true); +} + int mt7915_mcu_add_dev_info(struct mt7915_dev *dev, struct ieee80211_vif *vif, bool enable) { diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h index 52b420210908..2b2708828c1a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h @@ -823,6 +823,34 @@ struct sta_rec_ra { struct ra_phy phy; } __packed; +struct sta_rec_ra_fixed { + __le16 tag; + __le16 len; + + __le32 field; + u8 op_mode; + u8 op_vht_chan_width; + u8 op_vht_rx_nss; + u8 op_vht_rx_nss_type; + + struct ra_phy phy; + + u8 spe_en; + u8 short_preamble; + u8 is_5g; + u8 mmps_mode; +} __packed; + +#define RATE_PARAM_FIXED 3 +#define RATE_PARAM_AUTO 20 +#define RATE_CFG_MCS GENMASK(3, 0) +#define RATE_CFG_NSS GENMASK(7, 4) +#define RATE_CFG_GI GENMASK(11, 8) +#define RATE_CFG_BW GENMASK(15, 12) +#define RATE_CFG_STBC GENMASK(19, 16) +#define RATE_CFG_LDPC GENMASK(23, 20) +#define RATE_CFG_PHY_TYPE GENMASK(27, 24) + enum { STA_REC_BASIC, STA_REC_RA, diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h index ae3866d0a47a..c9015fa25156 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h @@ -302,6 +302,8 @@ int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif, struct ieee80211_sta *sta); int mt7915_mcu_set_chan_info(struct mt7915_phy *phy, int cmd); int mt7915_mcu_set_tx(struct mt7915_dev *dev, struct ieee80211_vif *vif); +int mt7915_mcu_set_fixed_rate(struct mt7915_dev *dev, + struct ieee80211_sta *sta, u32 rate); int mt7915_mcu_set_eeprom(struct mt7915_dev *dev); int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u32 offset); int mt7915_mcu_set_mac(struct mt7915_dev *dev, int band, bool enable,