From patchwork Tue Dec 12 09:15:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 753916 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EFCE15811B for ; Tue, 12 Dec 2023 09:15:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NTzWB8E3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CEE2C433C7; Tue, 12 Dec 2023 09:15:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702372527; bh=FR6eSFR1DdCBefwAt+83BDLOHz5IyrhGNmJV1nYYKmw=; h=From:To:Cc:Subject:Date:From; b=NTzWB8E310b4xVRFr26JzLuPUehbe2Hi0iQ0WxAO7iQcr5mmefg7AGQ24lCCqDQmL XvLV88D9UBwOCMxTGpG/M8Yh83OMlCK9Ts4ZSkdGt4aefsUwCClKD/8ms8fVuNJ4Kp nMl4LrzxWZMrle94r0KxpBnZF3LTBGCfloRxYYfWliMXUuZ6r/bzmwHFnXoIpEoXJ1 6XB8GRqB1dXZzy10zUlXGWDvZihDTgX+VuXvetcIHT1BZNwV7zlSmkylLrvqjxShm5 sTr7OUPxNATsSQn9gOKdy3WE1jyJFwdpl3X/XSksFaNE5hCAJPE3Z9KA3cXBid0dr6 T/F2Cq6O7wrLQ== From: Lorenzo Bianconi To: nbd@nbd.name Cc: lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH v2] wifi: mt76: set page_pool napi pointer for mmio devices Date: Tue, 12 Dec 2023 10:15:19 +0100 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In order to recycle skbs in the page_pool "hot" cache in napi_pp_put_page routine, set napi pointer for MMIO devices in mt76_create_page_pool(). Signed-off-by: Lorenzo Bianconi --- Changes since v1: - do not allocate page_pools for tx queues --- drivers/net/wireless/mediatek/mt76/mac80211.c | 10 +++++++++- drivers/net/wireless/mediatek/mt76/mt76.h | 12 ++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 5cc608d20619..516980cf4caf 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -579,13 +579,18 @@ EXPORT_SYMBOL_GPL(mt76_unregister_phy); int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q) { + bool is_qrx = mt76_queue_is_rx(dev, q); struct page_pool_params pp_params = { .order = 0, .flags = 0, .nid = NUMA_NO_NODE, .dev = dev->dma_dev, }; - int idx = q - dev->q_rx; + int idx = is_qrx ? q - dev->q_rx : -1; + + /* Allocate page_pools just for rx/wed_tx_free queues */ + if (!is_qrx && !mt76_queue_is_wed_tx_free(q)) + return 0; switch (idx) { case MT_RXQ_MAIN: @@ -604,6 +609,9 @@ int mt76_create_page_pool(struct mt76_dev *dev, struct mt76_queue *q) pp_params.dma_dir = DMA_FROM_DEVICE; pp_params.max_len = PAGE_SIZE; pp_params.offset = 0; + /* NAPI is available just for rx queues */ + if (idx >= 0 && idx < ARRAY_SIZE(dev->napi)) + pp_params.napi = &dev->napi[idx]; } q->page_pool = page_pool_create(&pp_params); diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index c7286dbeeaae..0da88f153427 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -1613,6 +1613,18 @@ s8 mt76_get_rate_power_limits(struct mt76_phy *phy, struct mt76_power_limits *dest, s8 target_power); +static inline bool mt76_queue_is_rx(struct mt76_dev *dev, struct mt76_queue *q) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++) { + if (q == &dev->q_rx[i]) + return true; + } + + return false; +} + static inline bool mt76_queue_is_wed_tx_free(struct mt76_queue *q) { return (q->flags & MT_QFLAG_WED) &&