From patchwork Mon Sep 2 09:00:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingyen Hsieh X-Patchwork-Id: 13786929 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 78A83CA0ED3 for ; Mon, 2 Sep 2024 09:01:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=a8pwBEAn/PiKve4MsqUFcYOogJa73FkNa5F6NZMlHrI=; b=uDG6MpuupLsYyEtLW3gX1yRShb 9ASNOlfpnE32iRMXRZ745o3vOvwVfwadHhLAs7HJGPCeOiHl5xOPUi4XLIHvDVgm8oW4ZLWQc02eg 8sx0AFW6OSuKf/GP5iZLp0E9yKTwH/eerqqPjklQKxl9uJPLKzArPu9VuNNmY0bEoO/W/77r2DPw8 /xt1JHHP27x3dfkJAiaGCkd0XYpWjXyQDVirmgqFaTE1AC/DJfllS651mxxNEjtemDvvtnsellB2r ZIs6DcroqPNpl8XT//yJrUJiNJTcGfIf+W+ds9tjifWJDJZ1b3i4dOGGdChJ3ueHxx2YM9lNH7oc6 azKni7YQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sl2vw-0000000DcgP-3v0W; Mon, 02 Sep 2024 09:01:12 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sl2vt-0000000Dcfj-1DyP for linux-mediatek@lists.infradead.org; Mon, 02 Sep 2024 09:01:10 +0000 X-UUID: e0866e80690911efba0aef63c0775dbf-20240902 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=a8pwBEAn/PiKve4MsqUFcYOogJa73FkNa5F6NZMlHrI=; b=GfezLxj1BLhQFL8Tq+kgY1nedV0f5Xpz0ZUqX2339mCdYdchpswcFZziRRnzBDdC9DVNZdWNQS9680FAzoxcSF27IDQEx1hC/aJ4s1SAtWKFQFe+k+fcKOGMpYAz6bHghgixYTUflGFg+8lQ1vdT7OiTenuKF+D82V4YsZltSV0=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.41,REQID:ec67aff0-6fed-4472-80b6-6dde05691818,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:6dc6a47,CLOUDID:37332c15-737d-40b3-9394-11d4ad6e91a1,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,RT: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,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: e0866e80690911efba0aef63c0775dbf-20240902 Received: from mtkmbs09n2.mediatek.inc [(172.21.101.94)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 412295002; Mon, 02 Sep 2024 02:01:01 -0700 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 2 Sep 2024 17:00:58 +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; Mon, 2 Sep 2024 17:00:58 +0800 From: Mingyen Hsieh To: , CC: , , , , , , , , , , , , , , , Michael Lo , , Ming Yen Hsieh Subject: [PATCH] wifi: mt76: mt7925: fix a potential association failure upon resuming Date: Mon, 2 Sep 2024 17:00:54 +0800 Message-ID: <20240902090054.15806-1-mingyen.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240902_020109_364963_B89A9CD2 X-CRM114-Status: GOOD ( 10.63 ) 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: Michael Lo In multi-channel scenarios, the granted channel must be aborted before suspending. Otherwise, the firmware will be put into a wrong state, resulting in an association failure after resuming. With this patch, the granted channel will be aborted before suspending if necessary. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Michael Lo Signed-off-by: Ming Yen Hsieh --- drivers/net/wireless/mediatek/mt76/mt7925/main.c | 15 +++++++++++++++ .../net/wireless/mediatek/mt76/mt7925/mt7925.h | 1 + drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 2 ++ 3 files changed, 18 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/main.c b/drivers/net/wireless/mediatek/mt76/mt7925/main.c index 8c0768bf9343..7c05aebd3c20 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/main.c @@ -439,6 +439,19 @@ static void mt7925_roc_iter(void *priv, u8 *mac, mt7925_mcu_abort_roc(phy, &mvif->bss_conf, phy->roc_token_id); } +void mt7925_roc_abort_sync(struct mt792x_dev *dev) +{ + struct mt792x_phy *phy = &dev->phy; + + del_timer_sync(&phy->roc_timer); + cancel_work_sync(&phy->roc_work); + if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) + ieee80211_iterate_interfaces(mt76_hw(dev), + IEEE80211_IFACE_ITER_RESUME_ALL, + mt7925_roc_iter, (void *)phy); +} +EXPORT_SYMBOL_GPL(mt7925_roc_abort_sync); + void mt7925_roc_work(struct work_struct *work) { struct mt792x_phy *phy; @@ -1109,6 +1122,8 @@ static void mt7925_mac_link_sta_remove(struct mt76_dev *mdev, msta = (struct mt792x_sta *)link_sta->sta->drv_priv; mlink = mt792x_sta_to_link(msta, link_id); + mt7925_roc_abort_sync(dev); + mt76_connac_free_pending_tx_skbs(&dev->pm, &mlink->wcid); mt76_connac_pm_wake(&dev->mphy, &dev->pm); diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mt7925.h b/drivers/net/wireless/mediatek/mt76/mt7925/mt7925.h index 669f3a079d04..c5ea431998e0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mt7925.h +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mt7925.h @@ -307,6 +307,7 @@ int mt7925_mcu_set_roc(struct mt792x_phy *phy, struct mt792x_bss_conf *mconf, enum mt7925_roc_req type, u8 token_id); int mt7925_mcu_abort_roc(struct mt792x_phy *phy, struct mt792x_bss_conf *mconf, u8 token_id); +void mt7925_roc_abort_sync(struct mt792x_dev *dev); int mt7925_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb, int cmd, int *wait_seq); int mt7925_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif, diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c index 6e4f4e78c350..39305c39362f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c @@ -449,6 +449,8 @@ static int mt7925_pci_suspend(struct device *device) cancel_delayed_work_sync(&pm->ps_work); cancel_work_sync(&pm->wake_work); + mt7925_roc_abort_sync(dev); + err = mt792x_mcu_drv_pmctrl(dev); if (err < 0) goto restore_suspend;