From patchwork Thu Jun 22 16:50:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13289435 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0521EB64D8 for ; Thu, 22 Jun 2023 16:51:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231209AbjFVQvO (ORCPT ); Thu, 22 Jun 2023 12:51:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231384AbjFVQvN (ORCPT ); Thu, 22 Jun 2023 12:51:13 -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 2DD2010D for ; Thu, 22 Jun 2023 09:51:12 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 937166184D for ; Thu, 22 Jun 2023 16:51:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9847CC433C8; Thu, 22 Jun 2023 16:51:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1687452671; bh=pgCOOC/rljmnSym4Gib74DXMilsYnwIUioftRgpqIKo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XROA/wgl0MfhwDWMGGNDnnMOvbvCKHjrIxBFbJ6FEqCzRXlyX0R1tTR0Lg32lQ9Rb 9YcMxiPMQY8OI9sC43oeCrLmMVFcAF9jbYiTqPERmwZhGesl/KQBUNPdktNLign00M 4oOhr8lqH4oQf/NDMK0ObfHN9ktfJN5d4hm1GQVGi3XUt+61C7SHVEPdTeWTlqmqM7 qYEY2L2oQGuRWl9GkRi6ceHha5Tiv2QeDv4rsZazdlppiwttcfoxaAzrVYPIP26rtL m8jiay35J2RBcmb6idvm3C+UycuxdP56tN2TYq41pyGg7nfzlpyOqzGzsnOf0qJu7R W7bOQP9pxFMvw== From: Lorenzo Bianconi To: nbd@nbd.name Cc: lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org, ryder.lee@mediatek.com, deren.wu@mediatek.com, shayne.chen@mediatek.com Subject: [PATCH v4 04/15] wifi: mt76: mt7996: rely on shared sta_poll_list and sta_poll_lock Date: Thu, 22 Jun 2023 18:50:21 +0200 Message-ID: <0831f25de04f1cc9a3cb12b21fe39a49b3b74140.1687452202.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.41.0 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 38ff33a7fc12..e297e7cb3a7a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -856,9 +856,7 @@ 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 a39bb39af540..46b1dbcb4b45 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; @@ -1291,10 +1292,11 @@ 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; } @@ -1499,10 +1501,10 @@ 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(); @@ -2325,7 +2327,7 @@ 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)) { @@ -2333,7 +2335,7 @@ 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); @@ -2345,10 +2347,10 @@ 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 f173d197fcf6..975aac210a7d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -263,10 +263,10 @@ 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); } @@ -689,12 +689,12 @@ 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, @@ -1005,11 +1005,11 @@ 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 23de7508c954..b45a9eecd71e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h @@ -224,9 +224,7 @@ 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;