From patchwork Mon May 10 15:14:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12248493 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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2FCAC433B4 for ; Mon, 10 May 2021 15:18:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A46E961139 for ; Mon, 10 May 2021 15:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235224AbhEJPTA (ORCPT ); Mon, 10 May 2021 11:19:00 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:58505 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S240785AbhEJPQu (ORCPT ); Mon, 10 May 2021 11:16:50 -0400 X-UUID: 54c13996d2734fc5b53fdf81cfbba77e-20210510 X-UUID: 54c13996d2734fc5b53fdf81cfbba77e-20210510 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2021363846; Mon, 10 May 2021 23:15:01 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 10 May 2021 23:15:00 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 10 May 2021 23:14:59 +0800 From: To: , CC: , , , , , , , , , , , , , , , , Deren Wu , YN Chen Subject: [PATCH 9/9] mt76: mt7921: add back connection monitor support Date: Mon, 10 May 2021 23:14:57 +0800 Message-ID: <1620659697-12048-9-git-send-email-sean.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1620659697-12048-1-git-send-email-sean.wang@mediatek.com> References: <1620659697-12048-1-git-send-email-sean.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Sean Wang Hw beacon cmd to the mt7921 firmware doesn't only filter out the beacon, but also performs its own connection monitoring, including periodic keep-alives to the AP and probing the AP on beacon loss. Will indicate the host with the event when the firmware detects the connection is lost. Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support") Reviewed-by: Lorenzo Bianconi Signed-off-by: Deren Wu Signed-off-by: YN Chen Signed-off-by: Sean Wang --- .../net/wireless/mediatek/mt76/mt7921/init.c | 4 +++ .../net/wireless/mediatek/mt76/mt7921/mcu.c | 32 +++++++++++++------ 2 files changed, 27 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index cd68721314fa..cbb1d432a591 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -73,6 +73,7 @@ static void mt7921_init_wiphy(struct ieee80211_hw *hw) { struct mt7921_phy *phy = mt7921_hw_phy(hw); + struct mt7921_dev *dev = phy->dev; struct wiphy *wiphy = hw->wiphy; hw->queues = 4; @@ -112,6 +113,9 @@ mt7921_init_wiphy(struct ieee80211_hw *hw) ieee80211_hw_set(hw, SUPPORTS_PS); ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); + if (dev->pm.enable) + ieee80211_hw_set(hw, CONNECTION_MONITOR); + hw->max_tx_fragments = 4; } diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 67dc4b4cc094..7c68182cad55 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -450,22 +450,33 @@ mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb) } static void -mt7921_mcu_beacon_loss_event(struct mt7921_dev *dev, struct sk_buff *skb) +mt7921_mcu_connection_loss_iter(void *priv, u8 *mac, + struct ieee80211_vif *vif) +{ + struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv; + struct mt76_connac_beacon_loss_event *event = priv; + + if (mvif->idx != event->bss_idx) + return; + + if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) + return; + + ieee80211_connection_loss(vif); +} + +static void +mt7921_mcu_connection_loss_event(struct mt7921_dev *dev, struct sk_buff *skb) { struct mt76_connac_beacon_loss_event *event; - struct mt76_phy *mphy; - u8 band_idx = 0; /* DBDC support */ + struct mt76_phy *mphy = &dev->mt76.phy; skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); event = (struct mt76_connac_beacon_loss_event *)skb->data; - if (band_idx && dev->mt76.phy2) - mphy = dev->mt76.phy2; - else - mphy = &dev->mt76.phy; ieee80211_iterate_active_interfaces_atomic(mphy->hw, IEEE80211_IFACE_ITER_RESUME_ALL, - mt76_connac_mcu_beacon_loss_iter, event); + mt7921_mcu_connection_loss_iter, event); } static void @@ -530,7 +541,7 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) switch (rxd->eid) { case MCU_EVENT_BSS_BEACON_LOSS: - mt7921_mcu_beacon_loss_event(dev, skb); + mt7921_mcu_connection_loss_event(dev, skb); break; case MCU_EVENT_SCHED_SCAN_DONE: case MCU_EVENT_SCAN_DONE: @@ -1368,6 +1379,7 @@ mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) { struct mt7921_phy *phy = priv; struct mt7921_dev *dev = phy->dev; + struct ieee80211_hw *hw = mt76_hw(dev); int ret; if (dev->pm.enable) @@ -1380,9 +1392,11 @@ mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) if (dev->pm.enable) { vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; + ieee80211_hw_set(hw, CONNECTION_MONITOR); mt76_set(dev, MT_WF_RFCR(0), MT_WF_RFCR_DROP_OTHER_BEACON); } else { vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; + __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags); mt76_clear(dev, MT_WF_RFCR(0), MT_WF_RFCR_DROP_OTHER_BEACON); } }