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Fri, 29 Dec 2023 11:09:41 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 29 Dec 2023 11:09:41 +0800 From: Mingyen Hsieh To: , CC: , , , , , , , , , , , , , , Ming Yen Hsieh Subject: [PATCH v2 09/10] wifi: mt76: mt7925: add support to set ifs time by mcu command Date: Fri, 29 Dec 2023 11:09:36 +0800 Message-ID: <20231229030937.22605-10-mingyen.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231229030937.22605-1-mingyen.hsieh@mediatek.com> References: <20231229030937.22605-1-mingyen.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--7.805900-8.000000 X-TMASE-MatchedRID: 06Q8EsIqb9eR8u6DOJbzp23NvezwBrVmI7OxeNfmD+zRLEyE6G4DRDUi 2rTIOxGGLrbcyKMEIWPggZx2BsLJvwwmy40hXZDtXP5rFAucBUFMkOX0UoduuQCGaccd4ae9DYJ QbNnE3Z1EctEVwopld3gzl+/kA+7LCRueYusp1xzhuXUWQoMQt4fsPVs/8Vw6NM9QGIWxRxu3Wj IVml7BR3APPz+ThJ/c7ltuOQx7xTyPaFHMfVTC4BRFJJyf5BJe3QfwsVk0UbvWxQsAIHSpEmNxv H3jV/W6zIdo3SBDyrN99JlM2GrGS5mYCCkQ04XkJs/yriVLeKmUTGVAhB5EbQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--7.805900-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: A45040033704173E01EF26EBE16BFDC6508EDFC771931FFAE114360A727F32DA2000:8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231228_191018_357790_B2830209 X-CRM114-Status: GOOD ( 12.91 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Ming Yen Hsieh There's a race between driver and fw on some tx/rx control registers when setting ifs, which will cause accidental hw queue pause problems. Avoid this by setting ifs time with bss_info mcu command. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Co-developed-by: Deren Wu Signed-off-by: Deren Wu Signed-off-by: Ming Yen Hsieh --- .../net/wireless/mediatek/mt76/mt7925/main.c | 2 +- .../net/wireless/mediatek/mt76/mt7925/mcu.c | 33 +++++++++++++++++++ .../net/wireless/mediatek/mt76/mt7925/mcu.h | 19 +++++++++++ 3 files changed, 53 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/main.c b/drivers/net/wireless/mediatek/mt76/mt7925/main.c index 46c913511359..1f07ec5a2072 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/main.c @@ -711,7 +711,7 @@ static void mt7925_bss_info_changed(struct ieee80211_hw *hw, if (slottime != phy->slottime) { phy->slottime = slottime; - mt792x_mac_set_timeing(phy); + mt7925_mcu_set_timing(phy, vif); } } diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index 932ecf38672c..e1dd89a7a79c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -2244,6 +2244,38 @@ mt7925_mcu_bss_color_tlv(struct sk_buff *skb, struct ieee80211_vif *vif, vif->bss_conf.he_bss_color.color : 0; } +static void +mt7925_mcu_bss_ifs_tlv(struct sk_buff *skb, struct ieee80211_vif *vif) +{ + struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; + struct mt792x_phy *phy = mvif->phy; + struct bss_ifs_time_tlv *ifs_time; + struct tlv *tlv; + + tlv = mt76_connac_mcu_add_tlv(skb, UNI_BSS_INFO_IFS_TIME, sizeof(*ifs_time)); + ifs_time = (struct bss_ifs_time_tlv *)tlv; + ifs_time->slot_valid = true; + ifs_time->slot_time = cpu_to_le16(phy->slottime); +} + +int mt7925_mcu_set_timing(struct mt792x_phy *phy, + struct ieee80211_vif *vif) +{ + struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; + struct mt792x_dev *dev = phy->dev; + struct sk_buff *skb; + + skb = __mt7925_mcu_alloc_bss_req(&dev->mt76, &mvif->mt76, + MT7925_BSS_UPDATE_MAX_SIZE); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + mt7925_mcu_bss_ifs_tlv(skb, vif); + + return mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_UNI_CMD(BSS_INFO_UPDATE), true); +} + int mt7925_mcu_add_bss_info(struct mt792x_phy *phy, struct ieee80211_chanctx_conf *ctx, struct ieee80211_vif *vif, @@ -2268,6 +2300,7 @@ int mt7925_mcu_add_bss_info(struct mt792x_phy *phy, mt7925_mcu_bss_bmc_tlv(skb, phy, ctx, vif, sta); mt7925_mcu_bss_qos_tlv(skb, vif); mt7925_mcu_bss_mld_tlv(skb, vif, sta); + mt7925_mcu_bss_ifs_tlv(skb, vif); if (vif->bss_conf.he_support) { mt7925_mcu_bss_he_tlv(skb, vif, phy); diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h index 9fce054e5065..2cf39276118e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h @@ -440,6 +440,22 @@ struct sta_rec_mld { } __packed link[2]; } __packed; +struct bss_ifs_time_tlv { + __le16 tag; + __le16 len; + u8 slot_valid; + u8 sifs_valid; + u8 rifs_valid; + u8 eifs_valid; + __le16 slot_time; + __le16 sifs_time; + __le16 rifs_time; + __le16 eifs_time; + u8 eifs_cck_valid; + u8 rsv; + __le16 eifs_cck_time; +} __packed; + #define MT7925_STA_UPDATE_MAX_SIZE (sizeof(struct sta_req_hdr) + \ sizeof(struct sta_rec_basic) + \ sizeof(struct sta_rec_bf) + \ @@ -467,6 +483,7 @@ struct sta_rec_mld { sizeof(struct bss_mld_tlv) + \ sizeof(struct bss_info_uni_he) + \ sizeof(struct bss_info_uni_bss_color) + \ + sizeof(struct bss_ifs_time_tlv) + \ sizeof(struct tlv)) #define MT_CONNAC3_SKU_POWER_LIMIT 449 @@ -564,6 +581,8 @@ int mt7925_mcu_add_bss_info(struct mt792x_phy *phy, struct ieee80211_vif *vif, struct ieee80211_sta *sta, int enable); +int mt7925_mcu_set_timing(struct mt792x_phy *phy, + struct ieee80211_vif *vif); int mt7925_mcu_set_deep_sleep(struct mt792x_dev *dev, bool enable); int mt7925_mcu_set_channel_domain(struct mt76_phy *phy); int mt7925_mcu_set_radio_en(struct mt792x_phy *phy, bool enable);