From patchwork Wed Apr 22 16:04:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 215891 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 20015C55185 for ; Wed, 22 Apr 2020 16:04:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0242F20776 for ; Wed, 22 Apr 2020 16:04:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="Zwctzw7a" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726750AbgDVQEz (ORCPT ); Wed, 22 Apr 2020 12:04:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726830AbgDVQEm (ORCPT ); Wed, 22 Apr 2020 12:04:42 -0400 Received: from nbd.name (nbd.name [IPv6:2a01:4f8:221:3d45::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3320EC03C1AD for ; Wed, 22 Apr 2020 09:04:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=YIbw83ORCQfPY6FIY9As4bbOIcssYyINA+O/YcaD3Ac=; b=Zwctzw7a3wk9lV8A9xebLXNImb kzFzbnavYzEHpoD9Oqz8FOK+S1UKTbBfKQqYVmK/Hz8yeUQDnt5TKRJYGlz02FFac5urK1ZoteZdZ iXssFg/J7wTinLW79ZnmfQB3x+LKtw60elq7ccIuhHudH7lpRGbQfCr23SOJDCXAKviM=; Received: from p54ae965b.dip0.t-ipconnect.de ([84.174.150.91] helo=maeck.lan) by ds12 with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1jRHrb-000559-Vf for linux-wireless@vger.kernel.org; Wed, 22 Apr 2020 18:04:40 +0200 Received: by maeck.lan (Postfix, from userid 501) id A0AC38419631; Wed, 22 Apr 2020 18:04:38 +0200 (CEST) From: Felix Fietkau To: linux-wireless@vger.kernel.org Subject: [PATCH 3/9] mt76: mt7615: use larger rx buffers if VHT is supported Date: Wed, 22 Apr 2020 18:04:31 +0200 Message-Id: <20200422160437.99466-3-nbd@nbd.name> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200422160437.99466-1-nbd@nbd.name> References: <20200422160437.99466-1-nbd@nbd.name> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org In VHT mode we can receive larger MPDUs. Increasing the buffer size reduces fragmentation here, which should improve performance. Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7615/dma.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c index 5cdbe3747901..0b1fbddd1c3f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c @@ -192,8 +192,13 @@ static void mt7663_dma_sched_init(struct mt7615_dev *dev) int mt7615_dma_init(struct mt7615_dev *dev) { int rx_ring_size = MT7615_RX_RING_SIZE; + int rx_buf_size = MT_RX_BUF_SIZE; int ret; + /* Increase buffer size to receive large VHT MPDUs */ + if (dev->mt76.cap.has_5ghz) + rx_buf_size *= 2; + mt76_dma_attach(&dev->mt76); mt76_wr(dev, MT_WPDMA_GLO_CFG, @@ -234,7 +239,7 @@ int mt7615_dma_init(struct mt7615_dev *dev) /* init rx queues */ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU], 1, - MT7615_RX_MCU_RING_SIZE, MT_RX_BUF_SIZE, + MT7615_RX_MCU_RING_SIZE, rx_buf_size, MT_RX_RING_BASE); if (ret) return ret; @@ -243,7 +248,7 @@ int mt7615_dma_init(struct mt7615_dev *dev) rx_ring_size /= 2; ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN], 0, - rx_ring_size, MT_RX_BUF_SIZE, MT_RX_RING_BASE); + rx_ring_size, rx_buf_size, MT_RX_RING_BASE); if (ret) return ret;