From patchwork Mon May 29 10:40:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 688756 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75EE0C77B7A for ; Mon, 29 May 2023 10:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231778AbjE2Klz (ORCPT ); Mon, 29 May 2023 06:41:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231775AbjE2Kly (ORCPT ); Mon, 29 May 2023 06:41:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 392B6C7 for ; Mon, 29 May 2023 03:41:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7223662354 for ; Mon, 29 May 2023 10:41:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86139C433EF; Mon, 29 May 2023 10:41:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1685356910; bh=KKNZh60UIczoq7jLYpoJydzUOTpyeG4dNzSphSg/++Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n2uC8RlsHwHbL8a2hxoNsjV62zMcTHpZyjBgk5Tnfylb5Udn5jLHrWmezCw4TkK1X rxhbvWUkYMs1SjF5omccuNfekwRk9E1pCXirE73x9N8xOnKPCrOpiILgpYbstoeauw NCIMCMW5+5ckfsAk8XDiziMT8xFV94SDOVAWe3veZPg8Kj3J6sfYApBKtCgpfJrlWX IbkF3jmfh9sqbOt3JVuYSPQzH1SmcuY6p9kvfa3D3JO+dVDfUHV+bjMLWjai2FgbGD se7H6/S0trVsGejf9ZMeUIGc+Q0uPuPlka6l/21NTBr9ZjCHCFG2qonxixD+YxijCo ZzKAnt7Uv2k4g== From: Lorenzo Bianconi To: nbd@nbd.name Cc: lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH 05/13] wifi: mt76: mt7996: rely on shared sta_poll_list and sta_poll_lock Date: Mon, 29 May 2023 12:40:56 +0200 Message-Id: <610b1369e965d61bf01680e62d5fcae9bb1c19b6.1685356673.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Rely on sta_poll_list and sta_poll_lock fields in mt76_dev structure and get rid of private copies. Signed-off-by: Lorenzo Bianconi --- .../net/wireless/mediatek/mt76/mt7996/init.c | 2 - .../net/wireless/mediatek/mt76/mt7996/mac.c | 40 ++++++++++--------- .../net/wireless/mediatek/mt76/mt7996/main.c | 12 +++--- .../wireless/mediatek/mt76/mt7996/mt7996.h | 2 - 4 files changed, 27 insertions(+), 29 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c index f1b48cdda58f..8f3536dbe2bb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -853,9 +853,7 @@ int mt7996_register_device(struct mt7996_dev *dev) INIT_WORK(&dev->rc_work, mt7996_mac_sta_rc_work); INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7996_mac_work); INIT_LIST_HEAD(&dev->sta_rc_list); - INIT_LIST_HEAD(&dev->sta_poll_list); INIT_LIST_HEAD(&dev->twt_list); - spin_lock_init(&dev->sta_poll_lock); init_waitqueue_head(&dev->reset_wait); INIT_WORK(&dev->reset_work, mt7996_mac_reset_work); diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index 130eb7b4fd91..b2ad74798cf9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -111,9 +111,9 @@ static void mt7996_mac_sta_poll(struct mt7996_dev *dev) LIST_HEAD(sta_poll_list); int i; - spin_lock_bh(&dev->sta_poll_lock); - list_splice_init(&dev->sta_poll_list, &sta_poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); + list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list); + spin_unlock_bh(&dev->mt76.sta_poll_lock); rcu_read_lock(); @@ -124,15 +124,15 @@ static void mt7996_mac_sta_poll(struct mt7996_dev *dev) s8 rssi[4]; u8 bw; - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&sta_poll_list)) { - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); break; } msta = list_first_entry(&sta_poll_list, struct mt7996_sta, poll_list); list_del_init(&msta->poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); idx = msta->wcid.idx; @@ -681,10 +681,11 @@ mt7996_mac_fill_rx(struct mt7996_dev *dev, struct sk_buff *skb) struct mt7996_sta *msta; msta = container_of(status->wcid, struct mt7996_sta, wcid); - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&msta->poll_list)) - list_add_tail(&msta->poll_list, &dev->sta_poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + list_add_tail(&msta->poll_list, + &dev->mt76.sta_poll_list); + spin_unlock_bh(&dev->mt76.sta_poll_lock); } status->freq = mphy->chandef.chan->center_freq; @@ -1281,10 +1282,11 @@ mt7996_mac_tx_free(struct mt7996_dev *dev, void *data, int len) continue; msta = container_of(wcid, struct mt7996_sta, wcid); - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&mdev->sta_poll_lock); if (list_empty(&msta->poll_list)) - list_add_tail(&msta->poll_list, &dev->sta_poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + list_add_tail(&msta->poll_list, + &mdev->sta_poll_list); + spin_unlock_bh(&mdev->sta_poll_lock); continue; } @@ -1488,10 +1490,10 @@ static void mt7996_mac_add_txs(struct mt7996_dev *dev, void *data) if (!wcid->sta) goto out; - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&msta->poll_list)) - list_add_tail(&msta->poll_list, &dev->sta_poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + list_add_tail(&msta->poll_list, &dev->mt76.sta_poll_list); + spin_unlock_bh(&dev->mt76.sta_poll_lock); out: rcu_read_unlock(); @@ -2334,7 +2336,7 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) u32 changed; LIST_HEAD(list); - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); list_splice_init(&dev->sta_rc_list, &list); while (!list_empty(&list)) { @@ -2342,7 +2344,7 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) list_del_init(&msta->rc_list); changed = msta->changed; msta->changed = 0; - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); @@ -2354,10 +2356,10 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) /* TODO: smps change */ - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); } - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); } void mt7996_mac_work(struct work_struct *work) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index 0975774fe244..ee632467c1a3 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -262,10 +262,10 @@ static void mt7996_remove_interface(struct ieee80211_hw *hw, phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); mutex_unlock(&dev->mt76.mutex); - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); if (!list_empty(&msta->poll_list)) list_del_init(&msta->poll_list); - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); mt76_packet_id_flush(&dev->mt76, &msta->wcid); } @@ -667,12 +667,12 @@ void mt7996_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, for (i = 0; i < ARRAY_SIZE(msta->twt.flow); i++) mt7996_mac_twt_teardown_flow(dev, msta, i); - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&mdev->sta_poll_lock); if (!list_empty(&msta->poll_list)) list_del_init(&msta->poll_list); if (!list_empty(&msta->rc_list)) list_del_init(&msta->rc_list); - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&mdev->sta_poll_lock); } static void mt7996_tx(struct ieee80211_hw *hw, @@ -982,11 +982,11 @@ static void mt7996_sta_rc_work(void *data, struct ieee80211_sta *sta) struct mt7996_dev *dev = msta->vif->phy->dev; u32 *changed = data; - spin_lock_bh(&dev->sta_poll_lock); + spin_lock_bh(&dev->mt76.sta_poll_lock); msta->changed |= *changed; if (list_empty(&msta->rc_list)) list_add_tail(&msta->rc_list, &dev->sta_rc_list); - spin_unlock_bh(&dev->sta_poll_lock); + spin_unlock_bh(&dev->mt76.sta_poll_lock); } static void mt7996_sta_rc_update(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h index 4d7dcb95a620..313e94eae4ab 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h @@ -272,9 +272,7 @@ struct mt7996_dev { #endif struct list_head sta_rc_list; - struct list_head sta_poll_list; struct list_head twt_list; - spinlock_t sta_poll_lock; u32 hw_pattern;