From mboxrd@z Thu Jan 1 00:00:00 1970 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 7E6A0C433EF for ; Mon, 13 Dec 2021 04:34:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231701AbhLMEeO (ORCPT ); Sun, 12 Dec 2021 23:34:14 -0500 Received: from inva021.nxp.com ([92.121.34.21]:46214 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231620AbhLMEeO (ORCPT ); Sun, 12 Dec 2021 23:34:14 -0500 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C5DDA20061A; Mon, 13 Dec 2021 05:34:12 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 8C9DA200616; Mon, 13 Dec 2021 05:34:12 +0100 (CET) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 133EC183AC4C; Mon, 13 Dec 2021 12:34:10 +0800 (+08) From: Xiaoliang Yang To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com Cc: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, devicetree@vger.kernel.org, qiangqing.zhang@nxp.com, xiaoliang.yang_1@nxp.com Subject: [PATCH v2] arm64: dts: imx8mp-evk: configure multiple queues on eqos Date: Mon, 13 Dec 2021 12:45:46 +0800 Message-Id: <20211213044546.9903-1-xiaoliang.yang_1@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Eqos ethernet support five queues on hardware, enable these queues and configure the priority of each queue. Uses Strict Priority as scheduling algorithms to ensure that the TSN function works. The priority of each queue is a bitmask value that maps VLAN tag priority to the queue. Since the hardware only supports five queues, this patch maps priority 0-4 to queues one by one, and priority 5-7 to queue 4. The total fifo size of 5 queues is 8192 bytes, if enable 5 queues with store-and-forward mode, it's not enough for large packets, which would trigger fifo overflow frequently. This patch set DMA to thresh mode to enable all 5 queues. Signed-off-by: Xiaoliang Yang --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 57 ++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index 7b99fad6e4d6..e4c69594f067 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -86,6 +86,9 @@ pinctrl-0 = <&pinctrl_eqos>; phy-mode = "rgmii-id"; phy-handle = <ðphy0>; + snps,force_thresh_dma_mode; + snps,mtl-tx-config = <&mtl_tx_setup>; + snps,mtl-rx-config = <&mtl_rx_setup>; status = "okay"; mdio { @@ -99,6 +102,60 @@ eee-broken-1000t; }; }; + + mtl_tx_setup: tx-queues-config { + snps,tx-queues-to-use = <5>; + snps,tx-sched-sp; + queue0 { + snps,dcb-algorithm; + snps,priority = <0x1>; + }; + queue1 { + snps,dcb-algorithm; + snps,priority = <0x2>; + }; + queue2 { + snps,dcb-algorithm; + snps,priority = <0x4>; + }; + queue3 { + snps,dcb-algorithm; + snps,priority = <0x8>; + }; + queue4 { + snps,dcb-algorithm; + snps,priority = <0xf0>; + }; + }; + mtl_rx_setup: rx-queues-config { + snps,rx-queues-to-use = <5>; + snps,rx-sched-sp; + queue0 { + snps,dcb-algorithm; + snps,priority = <0x1>; + snps,map-to-dma-channel = <0>; + }; + queue1 { + snps,dcb-algorithm; + snps,priority = <0x2>; + snps,map-to-dma-channel = <1>; + }; + queue2 { + snps,dcb-algorithm; + snps,priority = <0x4>; + snps,map-to-dma-channel = <2>; + }; + queue3 { + snps,dcb-algorithm; + snps,priority = <0x8>; + snps,map-to-dma-channel = <3>; + }; + queue4 { + snps,dcb-algorithm; + snps,priority = <0xf0>; + snps,map-to-dma-channel = <4>; + }; + }; }; &fec { -- 2.17.1