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Tue, 14 Apr 2020 13:11:40 -0800 Received: from MTKMBS06N1.mediatek.inc (172.21.101.129) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 14 Apr 2020 14:01:36 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 15 Apr 2020 05:01:37 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 15 Apr 2020 05:01:35 +0800 From: Ryder Lee To: Felix Fietkau , Lorenzo Bianconi Subject: [PATCH v2 15/18] mt76: mt7915: set peer Tx fixed rate through debugfs Date: Wed, 15 Apr 2020 05:01:13 +0800 Message-ID: X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200414_141147_477017_D9301F5A X-CRM114-Status: GOOD ( 10.39 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: YF Luo , Evelyn Tsai , linux-wireless@vger.kernel.org, Sean Wang , Chih-Min Chen , Ryder Lee , Yiwei Chung , linux-mediatek@lists.infradead.org, Shayne Chen Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.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 7f67a1a8013b..cf3b60ded6ef 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c @@ -305,6 +305,18 @@ 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) { @@ -365,5 +377,6 @@ 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 e191c79c250e..32bd9e2c73e3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -1741,6 +1741,52 @@ 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 cc0e27730aab..b8d28d971974 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h @@ -803,6 +803,34 @@ 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 35e34d270c15..e5821d144c85 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h @@ -303,6 +303,8 @@ 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,